AM29F800BT-70WBK
更新时间:2024-09-18 18:37:47
品牌:SPANSION
描述:Flash, 512KX16, 70ns, PBGA48, 6 X 9 MM, 0.80 MM PITCH, LEAD FREE, FBGA-48
AM29F800BT-70WBK 概述
Flash, 512KX16, 70ns, PBGA48, 6 X 9 MM, 0.80 MM PITCH, LEAD FREE, FBGA-48 闪存
AM29F800BT-70WBK 规格参数
是否无铅: | 不含铅 | 是否Rohs认证: | 符合 |
生命周期: | Obsolete | 零件包装代码: | BGA |
包装说明: | 6 X 9 MM, 0.80 MM PITCH, LEAD FREE, FBGA-48 | 针数: | 48 |
Reach Compliance Code: | unknown | ECCN代码: | 3A001.A.2.C |
HTS代码: | 8542.32.00.51 | 风险等级: | 5.62 |
最长访问时间: | 70 ns | 其他特性: | TOP BOOT BLOCK |
备用内存宽度: | 8 | 启动块: | TOP |
命令用户界面: | YES | 数据轮询: | YES |
耐久性: | 1000000 Write/Erase Cycles | JESD-30 代码: | R-PBGA-B48 |
JESD-609代码: | e1 | 长度: | 9 mm |
内存密度: | 8388608 bit | 内存集成电路类型: | FLASH |
内存宽度: | 16 | 湿度敏感等级: | 3 |
功能数量: | 1 | 部门数/规模: | 1,2,1,15 |
端子数量: | 48 | 字数: | 524288 words |
字数代码: | 512000 | 工作模式: | ASYNCHRONOUS |
最高工作温度: | 125 °C | 最低工作温度: | -55 °C |
组织: | 512KX16 | 封装主体材料: | PLASTIC/EPOXY |
封装代码: | TFBGA | 封装等效代码: | BGA48,6X8,32 |
封装形状: | RECTANGULAR | 封装形式: | GRID ARRAY, THIN PROFILE, FINE PITCH |
并行/串行: | PARALLEL | 峰值回流温度(摄氏度): | 260 |
电源: | 5 V | 编程电压: | 5 V |
认证状态: | Not Qualified | 就绪/忙碌: | YES |
座面最大高度: | 1.2 mm | 部门规模: | 16K,8K,32K,64K |
最大待机电流: | 0.001 A | 子类别: | Flash Memories |
最大压摆率: | 0.06 mA | 最大供电电压 (Vsup): | 5.5 V |
最小供电电压 (Vsup): | 4.5 V | 标称供电电压 (Vsup): | 5 V |
表面贴装: | YES | 技术: | CMOS |
温度等级: | MILITARY | 端子面层: | Tin/Silver/Copper (Sn96.5Ag3.0Cu0.5) |
端子形式: | BALL | 端子节距: | 0.8 mm |
端子位置: | BOTTOM | 处于峰值回流温度下的最长时间: | 40 |
切换位: | YES | 类型: | NOR TYPE |
宽度: | 6 mm | Base Number Matches: | 1 |
AM29F800BT-70WBK 数据手册
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Data Sheet
Am29F800B Cover Sheet
The following document contains information on Spansion memory products.
Continuity of Specifications
There is no change to this data sheet as a result of offering the device as a Spansion product. Any changes that have been
made are the result of normal data sheet improvement and are noted in the document revision summary.
For More Information
Please contact your local sales office for additional information about Spansion memory solutions.
Publication Number 21504
Revision E
Amendment 8
Issue Date November 17, 2009
D a t a S h e e t
This page left intentionally blank.
2
Am29F800B
21504_E8 November 17, 2009
DATA SHEET
Am29F800B
8 Megabit (1 M x 8-Bit/512 K x 16-Bit)
CMOS 5.0 Volt-only, Boot Sector Flash Memory
DISTINCTIVE CHARACTERISTICS
■ Single power supply operation
■ Embedded Algorithms
— 5.0 Volt-only operation for read, erase, and
program operations
— Embedded Erase algorithm automatically
preprograms and erases the entire chip or any
combination of designated sectors
— Minimizes system level requirements
— Embedded Program algorithm automatically
writes and verifies data at specified addresses
■ Manufactured on 0.32 µm process technology
— Compatible with 0.5 µm Am29F800 device
■ Minimum 1,000,000 program/erase cycles per
■ High performance
sector guaranteed
— Access times as fast as 55 ns
■ 20-year data retention at 125°C
— Reliable operation for the life of the system
■ Package option
■ Low power consumption (typical values at
5 MHz)
— 1 µA standby mode current
— 48-pin TSOP
— 20 mA read current (byte mode)
— 28 mA read current (word mode)
— 30 mA program/erase current
— 44-pin SO
— 48-ball FBGA
— Known Good Die (KGD)
(see publication number 21631)
■ Flexible sector architecture
— One 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and
fifteen 64 Kbyte sectors (byte mode)
■ Compatibility with JEDEC standards
— Pinout and software compatible with single-
power-supply Flash
— One 8 Kword, two 4 Kword, one 16 Kword, and
fifteen 32 Kword sectors (word mode)
— Superior inadvertent write protection
— Supports full chip erase
■ Data# Polling and toggle bits
— Sector Protection features:
— Provides a software method of detecting
program or erase operation completion
A hardware method of locking a sector to
prevent any program or erase operations within
that sector
■ Ready/Busy# pin (RY/BY#)
— Provides a hardware method of detecting
program or erase cycle completion
— Sectors can be locked via programming
equipment
Temporary Sector Unprotect feature allows code
changes in previously locked sectors
■ Erase Suspend/Erase Resume
— Suspends an erase operation to read data from,
or program data to, a sector that is not being
erased, then resumes the erase operation
■ Top or bottom boot block configurations
available
■ Hardware reset pin (RESET#)
— Hardware method to reset the device to reading
array data
This Data Sheet states AMD’s current technical specifications regarding the Product described herein. This Data
Sheet may be revised by subsequent versions or modifications due to changes in technical specifications.
Publication# 21504 Rev: E Amendment: 8
Issue Date: November 17, 2009
D A T A S H E E T
GENERAL DESCRIPTION
The Am29F800B is an 8 Mbit, 5.0 volt-only Flash
memory organized as 1,048,576 bytes or 524,288
words. The device is offered in 44-pin SO, 48-pin
TSOP, and 48-ball FBGA packages. The device is also
available in Known Good Die (KGD) form. For more
information, refer to publication number 21631. The
word-wide data (x16) appears on DQ15–DQ0; the
byte-wide (x8) data appears on DQ7–DQ0. This device
is designed to be programmed in-system with the stan-
Device erasure occurs by executing the erase com-
mand sequence. This initiates the Embedded Erase
algorithm—an internal algorithm that automatically
preprograms the array (if it is not already programmed)
before executing the erase operation. During erase, the
device automatically times the erase pulse widths and
verifies proper cell margin.
The host system can detect whether a program or
erase operation is complete by observing the RY/BY#
pin, or by reading the DQ7 (Data# Polling) and DQ6
(toggle) status bits. After a program or erase cycle has
been completed, the device is ready to read array data
or accept another command.
dard system 5.0 volt V
supply. A 12.0 V V is not
CC
PP
required for write or erase operations. The device can
also be programmed in standard EPROM program-
mers.
This device is manufactured using AMD’s 0.32 µm
process technology, and offers all the features and ben-
efits of the Am29F800, which was manufactured using
0.5 µm process technology.
The sector erase architecture allows memory sectors
to be erased and reprogrammed without affecting the
data contents of other sectors. The device is fully
erased when shipped from the factory.
The standard device offers access times of 55 and
70 ns, allowing high speed microprocessors to operate
without wait states. To eliminate bus contention the
device has separate chip enable (CE#), write enable
(WE#) and output enable (OE#) controls.
Hardware data protection measures include a low
V
detector that automatically inhibits write opera-
CC
tions during power transitions. The hardware sector
protection feature disables both program and erase
operations in any combination of the sectors of mem-
ory. This can be achieved via programming equipment.
The device requires only a single 5.0 volt power sup-
ply for both read and write functions. Internally gener-
ated and regulated voltages are provided for the
program and erase operations.
The Erase Suspend feature enables the user to put
erase on hold for any period of time to read data from,
or program data to, any sector that is not selected for
erasure. True background erase can thus be achieved.
The device is entirely command set compatible with the
JEDEC single-power-supply Flash standard. Com-
mands are written to the command register using stan-
dard microprocessor write timings. Register contents
serve as input to an internal state-machine that con-
trols the erase and programming circuitry. Write cycles
also internally latch addresses and data needed for the
programming and erase operations. Reading data out
of the device is similar to reading from other Flash or
EPROM devices.
The hardware RESET# pin terminates any operation
in progress and resets the internal state machine to
reading array data. The RESET# pin may be tied to the
system reset circuitry. A system reset would thus also
reset the device, enabling the system microprocessor
to read the boot-up firmware from the Flash memory.
The system can place the device into the standby
mode. Power consumption is greatly reduced in
this mode.
Device programming occurs by executing the program
command sequence. This initiates the Embedded
Program algorithm—an internal algorithm that auto-
matically times the program pulse widths and verifies
proper cell margin.
AMD’s Flash technology combines years of Flash
memory manufacturing experience to produce the
highest levels of quality, reliability and cost effective-
ness. The device electrically erases all bits within a
sector simultaneously via Fowler-Nordheim tunneling.
The data is programmed using hot electron injection.
2
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
TABLE OF CONTENTS
Product Selector Guide . . . . . . . . . . . . . . . . . . . . .4
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . .5
Special Handling Instructions for FBGA Package .................... 6
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .7
Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ordering Information . . . . . . . . . . . . . . . . . . . . . . .8
Device Bus Operations . . . . . . . . . . . . . . . . . . . . . .9
Table 1. Am29F800B Device Bus Operations ..................................9
Word/Byte Configuration .......................................................... 9
Requirements for Reading Array Data ..................................... 9
Writing Commands/Command Sequences .............................. 9
Program and Erase Operation Status .................................... 10
Standby Mode ........................................................................ 10
RESET#: Hardware Reset Pin ............................................... 10
Output Disable Mode .............................................................. 10
Table 2. Am29F800BT Top Boot Block Sector Address Table .......11
Table 3. Am29F800BB Bottom Boot Block Sector Address Table ..12
Autoselect Mode ..................................................................... 12
Table 4. Am29F800B Autoselect Codes (High Voltage Method) ....13
Sector Protection/Unprotection ............................................... 13
Temporary Sector Unprotect .................................................. 13
Figure 1. Temporary Sector Unprotect Operation........................... 13
Hardware Data Protection ...................................................... 14
Command Definitions . . . . . . . . . . . . . . . . . . . . . .14
Reading Array Data ................................................................ 14
Reset Command ..................................................................... 14
Autoselect Command Sequence ............................................ 15
Word/Byte Program Command Sequence ............................. 15
Figure 2. Program Operation .......................................................... 15
Chip Erase Command Sequence ........................................... 15
Sector Erase Command Sequence ........................................ 16
Erase Suspend/Erase Resume Commands ........................... 16
Figure 3. Erase Operation............................................................... 17
Command Definitions ............................................................. 18
Table 5. Am29F800B Command Definitions ...................................18
Write Operation Status . . . . . . . . . . . . . . . . . . . . .19
DQ7: Data# Polling ................................................................. 19
Figure 4. Data# Polling Algorithm ................................................... 19
RY/BY#: Ready/Busy# ........................................................... 20
DQ6: Toggle Bit I .................................................................... 20
DQ2: Toggle Bit II ................................................................... 20
Reading Toggle Bits DQ6/DQ2 .............................................. 20
DQ5: Exceeded Timing Limits ................................................ 21
DQ3: Sector Erase Timer ....................................................... 21
Figure 5. Toggle Bit Algorithm......................................................... 21
Table 6. Write Operation Status ......................................................22
Absolute Maximum Ratings . . . . . . . . . . . . . . . . .23
Figure 6. Maximum Negative Overshoot Waveform ....................... 23
Figure 7. Maximum Positive Overshoot Waveform......................... 23
Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . 23
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . .24
TTL/NMOS Compatible .......................................................... 24
CMOS Compatible .................................................................. 25
Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 8. Test Setup....................................................................... 26
Table 7. Test Specifications ........................................................... 26
Key to Switching Waveforms. . . . . . . . . . . . . . . . 26
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 27
Read Operations .................................................................... 27
Figure 9. Read Operations Timings ............................................... 27
Hardware Reset (RESET#) .................................................... 28
Figure 10. RESET# Timings .......................................................... 28
Word/Byte Configuration (BYTE#) ........................................ 29
Figure 11. BYTE# Timings for Read Operations............................ 29
Figure 12. BYTE# Timings for Write Operations............................ 29
Erase/Program Operations ..................................................... 30
Figure 13. Program Operation Timings.......................................... 31
Figure 14. Chip/Sector Erase Operation Timings .......................... 32
Figure 15. Data# Polling Timings (During Embedded Algorithms). 33
Figure 16. Toggle Bit Timings (During Embedded Algorithms)...... 33
Figure 17. DQ2 vs. DQ6................................................................. 34
Temporary Sector Unprotect .................................................. 34
Figure 18. Temporary Sector Unprotect Timing Diagram .............. 34
Figure 19. Alternate CE# Controlled Write Operation Timings ...... 36
Erase and Programming Performance . . . . . . . 37
Latchup Characteristics. . . . . . . . . . . . . . . . . . . . 37
TSOP and SO Pin Capacitance . . . . . . . . . . . . . . 37
Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 38
SO 044—44-Pin Small Outline Package ................................ 38
TS 048—48-Pin Standard Pinout Thin Small
Outline Package (TSOP) ........................................................ 39
FBB048—48-Ball Fine-Pitch Ball Grid Array (FBGA) 6 x 9 mm
package .................................................................................. 40
Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 41
Revision A (August 1997) ....................................................... 41
Revision B (October 1997) ..................................................... 41
Revision C (January 1998) ..................................................... 41
Revision C+1 (April 1998) ....................................................... 41
Revision C+2 (April 1998) ....................................................... 41
Revision D (January 1999) ..................................................... 42
Revision D+1 (March 23, 1999) .............................................. 42
Revision D+2 (July 2, 1999) ................................................... 42
Revision E (November 16, 1999) ............................................ 42
Revision E+1 (August 4, 2000) ............................................... 42
Revision E+2 (June 4, 2004) .................................................. 42
Revision E3 (December 22, 2005) .......................................... 42
Revision E4 (May 19, 2006) ................................................... 42
Revision E5 (November 2, 2006) ............................................ 42
Revision E6 (March 3, 2009) .................................................. 42
Revision E7 (August 3, 2009) ................................................. 42
Revision E8 (November 17, 2009) .......................................... 42
November 17, 2009 21504E8
Am29F800B
3
D A T A S H E E T
PRODUCT SELECTOR GUIDE
Family Part Number
Am29F800B
Speed Option
VCC = 5.0 V 10%
-55
55
55
30
-70
70
70
30
Max access time, ns (tACC
)
Max CE# access time, ns (tCE
)
Max OE# access time, ns (tOE
)
Note: See “AC Characteristics” for full specifications.
BLOCK DIAGRAM
DQ0–DQ15 (A-1)
RY/BY#
VCC
Sector Switches
VSS
Erase Voltage
Generator
Input/Output
Buffers
RESET#
State
Control
WE#
BYTE#
Command
Register
PGM Voltage
Generator
Data
Latch
Chip Enable
Output Enable
Logic
STB
CE#
OE#
Y-Decoder
Y-Gating
STB
VCC Detector
Timer
Cell Matrix
X-Decoder
A0–A18
4
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
CONNECTION DIAGRAMS
This device is also available in Known Good Die (KGD) form. Refer to publication number 21631 for
more information.
A15
A14
A13
A12
A11
A10
A9
1
2
3
4
5
6
7
8
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
A16
BYTE#
VSS
DQ15/A-1
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4
VCC
DQ11
DQ3
DQ10
DQ2
DQ9
DQ1
DQ8
DQ0
OE#
VSS
CE#
A0
A8
NC
NC
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
WE#
RESET#
NC
48-Pin TSOP—Standard Pinout
NC
RY/BY#
A18
A17
A7
A6
A5
A4
A3
A2
A1
RY/BY#
A18
A17
A7
1
2
3
4
5
6
7
8
9
44 RESET#
43 WE#
42 A8
41 A9
A6
40 A10
A5
39 A11
A4
38 A12
A3
37 A13
A2
36 A14
A1 10
A0 11
35 A15
SO
34 A16
CE# 12
VSS 13
33 BYTE#
32 VSS
OE# 14
DQ0 15
DQ8 16
DQ1 17
DQ9 18
DQ2 19
DQ10 20
DQ3 21
DQ11 22
31 DQ15/A-1
30 DQ7
29 DQ14
28 DQ6
27 DQ13
26 DQ5
25 DQ12
24 DQ4
23 VCC
November 17, 2009 21504E8
Am29F800B
5
D A T A S H E E T
CONNECTION DIAGRAMS
This device is also available in Known Good Die (KGD) form. Refer to publication number 21631 for
more information.
FBGA
Top View, Balls Facing Down
A6
B6
C6
D6
E6
F6
G6
H6
A13
A12
A14
A15
A16
BYTE# DQ15/A-1 VSS
A5
A9
B5
A8
C5
D5
E5
F5
G5
H5
A10
A11
DQ7
DQ14
DQ13
DQ6
A4
B4
C4
D4
E4
F4
G4
H4
WE# RESET#
NC
NC
DQ5
DQ12
VCC
DQ4
A3
B3
C3
D3
E3
F3
G3
H3
RY/BY#
NC
A18
NC
DQ2
DQ10
DQ11
DQ3
A2
A7
B2
C2
A6
D2
A5
E2
F2
G2
H2
A17
DQ0
DQ8
DQ9
DQ1
A1
A3
B1
A4
C1
A2
D1
A1
E1
A0
F1
G1
H1
CE#
OE#
VSS
Flash memory devices in FBGA packages may be
damaged if exposed to ultrasonic cleaning methods.
The package and/or data integrity may be
compromised if the package body is exposed to
temperatures above 150° C for prolonged periods of
time.
Special Handling Instructions for FBGA
Package
Special handling is required for Flash Memory products
in FBGA packages.
6
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
PIN CONFIGURATION
LOGIC SYMBOL
A0–A18
= 19 addresses
19
DQ0–DQ14 = 15 data inputs/outputs
A0–A18
16 or 8
DQ15/A-1
=
DQ15 (data input/output, word mode),
A-1 (LSB address input, byte mode)
DQ0–DQ15
(A-1)
BYTE#
CE#
=
=
=
=
=
=
=
Selects 8-bit or 16-bit mode
Chip enable
CE#
OE#
OE#
Output enable
WE#
WE#
Write enable
RESET#
BYTE#
RESET#
RY/BY#
Hardware reset pin, active low
Ready/Busy# output
RY/BY#
V
+5.0 V single power supply
(see Product Selector Guide for
device speed ratings and voltage
supply tolerances)
CC
V
=
=
Device ground
SS
NC
Pin not connected internally
November 17, 2009 21504E8
Am29F800B
7
D A T A S H E E T
ORDERING INFORMATION
Standard Products
AMD standard products are available in several packages and operating ranges. The order number (Valid Combination) is formed
by a combination of the elements below.
Am29F800B
T
-70
E
F
TEMPERATURE RANGE
I
=
=
=
=
Industrial (–40°C to +85°C)
F
E
K
Industrial (–40°C to +85°C) with Pb-Free Package
Extended (–55°C to +125° C)
Extended (–55°C to +125° C) with Pb-Free Package
PACKAGE TYPE
E
=
48-Pin Thin Small Outline Package (TSOP)
Standard Pinout (TS 048)
S
=
=
44-Pin Small Outline Package (SO 044)
WB
48-Ball Fine Pitch Ball Grid Array (FBGA)
0.80 mm pitch, 6 x 9 mm package (FBB048)
This device is also available in Known Good Die (KGD) form. See publication number
21536 for more information.
SPEED OPTION
See Product Selector Guide and Valid Combinations
BOOT CODE SECTOR ARCHITECTURE
T
B
=
=
Top sector
Bottom sector
DEVICE NUMBER/DESCRIPTION
Am29F800B
8 Megabit (1 M x 8-Bit/512K x 16-Bit) CMOS Flash Memory
5.0 Volt-only Read, Program and Erase
Valid Combinations
Valid Combinations for FBGA Packages
Order Number Package Marking
AM29F800BT-55, F800BT55V,
AM29F800BT-55,
AM29F800BB-55
EI, EE, EF, EK
SI, SE, SF, SK
WBI,
WBE,
WBF,
WBK
AM29F800BT-70,
AM29F800BB-70
AM29F800BB-55
F800BB55V
I, E,
F, K
AM29F800BT-70,
AM29F800BB-70
F800BT70V,
F800BB70V
Valid Combinations
Valid Combinations list configurations planned to be sup-
ported in volume for this device. Consult the local AMD sales
office to confirm availability of specific valid combinations and
to check on newly released combinations.
8
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
DEVICE BUS OPERATIONS
This section describes the requirements and use of the
device bus operations, which are initiated through the
internal command register. The command register it-
self does not occupy any addressable memory loca-
tion. The register is composed of latches that store the
commands, along with the address and data informa-
tion needed to execute the command. The contents of
the register serve as inputs to the internal state ma-
chine. The state machine outputs dictate the function of
the device. The appropriate device bus operations
table lists the inputs and control levels required, and the
resulting output. The following subsections describe
each of these operations in further detail.
Table 1. Am29F800B Device Bus Operations
DQ8–DQ15
BYTE# BYTE#
Operation
CE#
OE# WE#
RESET#
A0–A18
DQ0–DQ7
DOUT
= VIH
DOUT
DIN
= VIL
High-Z
High-Z
Read
Write
L
L
H
X
X
H
X
H
L
H
AIN
AIN
X
L
H
DIN
CMOS Standby
TTL Standby
VCC 0.5 V
X
X
H
X
VCC 0.5 V
High-Z
High-Z
High-Z
High-Z
High-Z High-Z
High-Z High-Z
High-Z High-Z
High-Z High-Z
H
L
H
H
L
X
Output Disable
Hardware Reset
X
X
X
Temporary Sector Unprotect
(See Note)
X
X
X
VID
AIN
DIN
DIN
X
Legend:
L = Logic Low = VIL, H = Logic High = VIH, VID = 12.0 0.5 V, X = Don’t Care, DIN = Data In, DOUT = Data Out, AIN = Address In
Note: See the sections on Sector Group Protection and Temporary Sector Unprotect for more information.
command is necessary in this mode to obtain array
Word/Byte Configuration
data. Standard microprocessor read cycles that as-
The BYTE# pin controls whether the device data I/O
sert valid addresses on the device address inputs
pins DQ15–DQ0 operate in the byte or word configura-
produce valid data on the device data outputs. The
tion. If the BYTE# pin is set at logic ‘1’, the device is in
device remains enabled for read access until the
word configuration, DQ15–DQ0 are active and con-
command register contents are altered.
trolled by CE# and OE#.
See “Reading Array Data” for more information. Refer
to the AC Read Operations table for timing specifica-
tions and to the Read Operations Timings diagram for
If the BYTE# pin is set at logic ‘0’, the device is in byte
configuration, and only data I/O pins DQ0–DQ7 are ac-
tive and controlled by CE# and OE#. The data I/O pins
DQ8–DQ14 are tri-stated, and the DQ15 pin is used as
an input for the LSB (A-1) address function.
the timing waveforms. I
in the DC Characteristics
CC1
table represents the active current specification for
reading array data.
Requirements for Reading Array Data
To read array data from the outputs, the system must
Writing Commands/Command Sequences
To write a command or command sequence (which in-
cludes programming data to the device and erasing
sectors of memory), the system must drive WE# and
drive the CE# and OE# pins to V . CE# is the power
IL
control and selects the device. OE# is the output control
and gates array data to the output pins. WE# should re-
CE# to V , and OE# to V .
IL
IH
main at V .
IH
An erase operation can erase one sector, multiple sec-
tors, or the entire device. The Sector Address Tables in-
dicate the address space that each sector occupies. A
“sector address” consists of the address bits required
to uniquely select a sector. See the “Command Defini-
The internal state machine is set for reading array
data upon device power-up, or after a hardware reset.
This ensures that no spurious alteration of the mem-
ory content occurs during the power transition. No
November 17, 2009 21504E8
Am29F800B
9
D A T A S H E E T
tions” section for details on erasing a sector or the en-
tire chip, or suspending/resuming the erase operation.
In the DC Characteristics tables, I
standby current specification.
represents the
CC3
After the system writes the autoselect command se-
quence, the device enters the autoselect mode. The
system can then read autoselect codes from the inter-
nal register (which is separate from the memory array)
on DQ7–DQ0. Standard read cycle timings apply in this
mode. Refer to the “Autoselect Mode” and “Autoselect
Command Sequence” sections for more information.
RESET#: Hardware Reset Pin
The RESET# pin provides a hardware method of reset-
ting the device to reading array data. When the system
drives the RESET# pin low for at least a period of t ,
RP
the device immediately terminates any operation in
progress, tristates all data output pins, and ignores all
read/write attempts for the duration of the RESET#
pulse. The device also resets the internal state ma-
chine to reading array data. The operation that was in-
terrupted should be reinitiated once the device is ready
to accept another command sequence, to ensure data
integrity.
I
in the DC Characteristics table represents the ac-
CC2
tive current specification for the write mode. The “AC
Characteristics” section contains timing specification
tables and timing diagrams for write operations.
Program and Erase Operation Status
During an erase or program operation, the system may
check the status of the operation by reading the status
Current is reduced for the duration of the RESET#
pulse. When RESET# is held at V , the device enters
IL
the TTL standby mode; if RESET# is held at V
0.5 V, the device enters the CMOS standby mode.
SS
bits on DQ7–DQ0. Standard read cycle timings and I
CC
read specifications apply. Refer to “Write Operation
Status” for more information, and to each AC Charac-
teristics section for timing diagrams.
The RESET# pin may be tied to the system reset cir-
cuitry. A system reset would thus also reset the Flash
memory, enabling the system to read the boot-up firm-
ware from the Flash memory.
Standby Mode
When the system is not reading or writing to the device,
it can place the device in the standby mode. In this
mode, current consumption is greatly reduced, and the
outputs are placed in the high impedance state, inde-
pendent of the OE# input.
If RESET# is asserted during a program or erase oper-
ation, the RY/BY# pin remains a “0” (busy) until the in-
ternal reset operation is complete, which requires a
time of t
(during Embedded Algorithms). The
READY
system can thus monitor RY/BY# to determine whether
the reset operation is complete. If RESET# is asserted
when a program or erase operation is not executing
(RY/BY# pin is “1”), the reset operation is completed
The device enters the CMOS standby mode when CE#
and RESET# pins are both held at V
0.5 V. (Note
CC
that this is a more restricted voltage range than V .)
IH
within a time of t
(not during Embedded Algo-
READY
The device enters the TTL standby mode when CE#
rithms). The system can read data t
after the RE-
RH
and RESET# pins are both held at V . The device re-
IH
SET# pin returns to V .
IH
quires standard access time (t ) for read access when
CE
the device is in either of these standby modes, before it
is ready to read data.
Refer to the AC Characteristics tables for RESET# pa-
rameters and timing diagram.
The device also enters the standby mode when the RE-
SET# pin is driven low. Refer to the next section, “RE-
SET#: Hardware Reset Pin”.
Output Disable Mode
When the OE# input is at V , output from the device is
IH
disabled. The output pins are placed in the high imped-
ance state.
If the device is deselected during erasure or program-
ming, the device draws active current until the
operation is completed.
10
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
Table 2. Am29F800BT Top Boot Block Sector Address Table
Address Range (in hexadecimal)
Sector Size
(Kbytes/
(x16)
(x8)
Sector A18
A17
0
A16
0
A15
0
A14
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
A13
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
A12
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
Kwords)
Address Range
Address Range
SA0
SA1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
32/16
8/4
00000h–07FFFh
08000h–0FFFFh
10000h–17FFFh
18000h–1FFFFh
20000h–27FFFh
28000h–2FFFFh
30000h–37FFFh
38000h–3FFFFh
40000h–47FFFh
48000h–4FFFFh
50000h–57FFFh
58000h–5FFFFh
60000h–67FFFh
68000h–6FFFFh
70000h–77FFFh
78000h–7BFFFh
7C000h–7CFFFh
7D000h–7DFFFh
7E000h–7FFFFh
00000h–0FFFFh
10000h–1FFFFh
20000h–2FFFFh
30000h–3FFFFh
40000h–4FFFFh
50000h–5FFFFh
60000h–6FFFFh
70000h–7FFFFh
80000h–8FFFFh
90000h–9FFFFh
A0000h–AFFFFh
B0000h–BFFFFh
C0000h–CFFFFh
D0000h–DFFFFh
E0000h–EFFFFh
F0000h–F7FFFh
F8000h–F9FFFh
FA000h–FBFFFh
FC000h–FFFFFh
0
0
1
SA2
0
1
0
SA3
0
1
1
SA4
1
0
0
SA5
1
0
1
SA6
1
1
0
SA7
1
1
1
SA8
0
0
0
SA9
0
0
1
SA10
SA11
SA12
SA13
SA14
SA15
SA16
SA17
SA18
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
0
1
8/4
1
1
1
1
1
X
16/8
Note:
Address range is A18:A-1 in byte mode and A18:A0 in word mode. See the “Word/Byte Configuration” section for more
information.
November 17, 2009 21504E8
Am29F800B
11
D A T A S H E E T
Table 3. Am29F800BB Bottom Boot Block Sector Address Table
Address Range (in hexadecimal)
Sector Size
(Kbytes/
(x16)
(x8)
Sector A18
A17
0
A16
0
A15
0
A14
0
A13
0
A12
X
0
Kwords)
Address Range
Address Range
SA0
SA1
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
16/8
8/4
00000h–01FFFh
02000h–02FFFh
03000h–03FFFh
04000h–07FFFh
08000h–0FFFFh
10000h–17FFFh
18000h–1FFFFh
20000h–27FFFh
28000h–2FFFFh
30000h–37FFFh
38000h–3FFFFh
40000h–47FFFh
48000h–4FFFFh
50000h–57FFFh
58000h–5FFFFh
60000h–67FFFh
68000h–6FFFFh
70000h–77FFFh
78000h–7FFFFh
00000h–03FFFh
04000h–05FFFh
06000h–07FFFh
08000h–0FFFFh
10000h–1FFFFh
20000h–2FFFFh
30000h–3FFFFh
40000h–4FFFFh
50000h–5FFFFh
60000h–6FFFFh
70000h–7FFFFh
80000h–8FFFFh
90000h–9FFFFh
A0000h–AFFFFh
B0000h–BFFFFh
C0000h–CFFFFh
D0000h–DFFFFh
E0000h–EFFFFh
F0000h–FFFFFh
0
0
0
0
1
SA2
0
0
0
0
1
1
8/4
SA3
0
0
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
32/16
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
64/32
SA4
0
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SA5
0
1
0
SA6
0
1
1
SA7
1
0
0
SA8
1
0
1
SA9
1
1
0
SA10
SA11
SA12
SA13
SA14
SA15
SA16
SA17
SA18
1
1
1
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
Note:
Address range is A18:A-1 in byte mode and A18:A0 in word mode. See the “Word/Byte Configuration” sectionfor more
information.
Autoselect Mode
The autoselect mode provides manufacturer and de-
vice identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This
mode is primarily intended for programming equipment
to automatically match a device to be programmed with
its corresponding programming algorithm. However,
the autoselect codes can also be accessed in-system
through the command register.
dress must appear on the appropriate highest order
address bits. Refer to the corresponding Sector Ad-
dress Tables. The Command Definitions table shows
the remaining address bits that are don’t care. When all
necessary bits have been set as required, the program-
ming equipment may then read the corresponding
identifier code on DQ7–DQ0.
To access the autoselect codes in-system, the host
system can issue the autoselect command via the
command register, as shown in the Command Defini-
When using programming equipment, the autoselect
mode requires V (11.5 V to 12.5 V) on address pin
ID
A9. Address pins A6, A1, and A0 must be as shown in
Autoselect Codes (High Voltage Method) table. In addi-
tion, when verifying sector protection, the sector ad-
tions table. This method does not require V . See
“Command Definitions” for details on using the autose-
lect mode.
ID
12
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
Table 4. Am29F800B Autoselect Codes (High Voltage Method)
A18 A11
to to
Mode CE# OE# WE# A12 A10 A9
A8
to
A7
A5
to
A2
DQ8
to
A0 DQ15
DQ7
to
DQ0
Description
A6
A1
Manufacturer ID: AMD
L
L
L
L
H
H
X
X
VID
X
X
L
X
X
L
L
X
01h
D6h
Device ID:
Am29F800B
(Top Boot Block)
Word
Byte
Word
Byte
22h
X
X
VID
L
L
L
L
H
L
L
L
L
L
L
H
H
H
X
22h
X
D6h
58h
58h
Device ID:
Am29F800B
(Bottom Boot Block)
X
X
X
VID
X
X
X
X
H
L
01h
(protected)
X
X
Sector Protection Verification
L
L
H
SA
VID
L
H
00h
(unprotected)
L = Logic Low = VIL, H = Logic High = VIH, SA = Sector Address, X = Don’t care.
sectors are protected again. Figure 1 shows the algo-
rithm, and the Temporary Sector Unprotect diagram
shows the timing waveforms, for this feature.
Sector Protection/Unprotection
The hardware sector protection feature disables both
program and erase operations in any sector. The
hardware sector unprotection feature re-enables both
program and erase operations in previously pro-
tected sectors.
START
Sector protection/unprotection must be implemented
using programming equipment. The procedure re-
RESET# = VID
(Note 1)
quires a high voltage (V ) on address pin A9 and the
ID
control pins. Details on this method are provided in a
supplement, publication number 20374. Contact an
AMD representative to obtain a copy of the appropriate
document.
Perform Erase or
Program Operations
The device is shipped with all sectors unprotected.
AMD offers the option of programming and protecting
sectors at its factory prior to shipping the device
through AMD’s ExpressFlash™ Service. Contact an
AMD representative for details.
RESET# = VIH
Temporary Sector
Unprotect
Completed (Note 2)
It is possible to determine whether a sector is protected
or unprotected. See “Autoselect Mode” for details.
Temporary Sector Unprotect
This feature allows temporary unprotection of previ-
ously protected sectors to change data in-system.
The Sector Unprotect mode is activated by setting the
Notes:
1. All protected sectors unprotected.
2. All previously protected sectors are protected once
again.
RESET# pin to V . During this mode, formerly pro-
ID
tected sectors can be programmed or erased by se-
lecting the sector addresses. Once V is removed
from the RESET# pin, all the previously protected
ID
Figure 1. Temporary Sector Unprotect Operation
November 17, 2009 21504E8
Am29F800B
13
D A T A S H E E T
proper signals to the control pins to prevent uninten-
Hardware Data Protection
tional writes when V is greater than V
.
CC
LKO
The command sequence requirement of unlock cycles
for programming or erasing provides data protection
against inadvertent writes (refer to the Command Defi-
nitions table). In addition, the following hardware data
protection measures prevent accidental erasure or pro-
gramming, which might otherwise be caused by spuri-
Write Pulse “Glitch” Protection
Noise pulses of less than 5 ns (typical) on OE#, CE# or
WE# do not initiate a write cycle.
Logical Inhibit
ous system level signals during V
power-down transitions, or from system noise.
power-up and
Write cycles are inhibited by holding any one of OE# =
CC
V , CE# = V or WE# = V . To initiate a write cycle,
IL
IH
IH
CE# and WE# must be a logical zero while OE# is a
logical one.
Low V Write Inhibit
CC
When V
is less than V
, the device does not ac-
LKO
CC
Power-Up Write Inhibit
cept any write cycles. This protects data during V
CC
power-up and power-down. The command register and
all internal program/erase circuits are disabled, and the
If WE# = CE# = V and OE# = V during power up, the
IL
IH
device does not accept commands on the rising edge
of WE#. The internal state machine is automatically
reset to reading array data on power-up.
device resets. Subsequent writes are ignored until V
CC
is greater than V
. The system must provide the
LKO
COMMAND DEFINITIONS
Writing specific address and data commands or se-
quences into the command register initiates device op-
erations. The Command Definitions table defines the
valid register command sequences. Writing incorrect
address and data values or writing them in the im-
proper sequence resets the device to reading array
data.
See also “Requirements for Reading Array Data” in the
“Device Bus Operations” section for more information.
The Read Operations table provides the read parame-
ters, and Read Operation Timings diagram shows the
timing diagram.
Reset Command
Writing the reset command to the device resets the de-
vice to reading array data. Address bits are don’t care
for this command.
All addresses are latched on the falling edge of WE# or
CE#, whichever happens later. All data is latched on
the rising edge of WE# or CE#, whichever happens
first. Refer to the appropriate timing diagrams in the
“AC Characteristics” section.
The reset command may be written between the se-
quence cycles in an erase command sequence before
erasing begins. This resets the device to reading array
data. Once erasure begins, however, the device ig-
nores reset commands until the operation is complete.
Reading Array Data
The device is automatically set to reading array data
after device power-up. No commands are required to
retrieve data. The device is also ready to read array
data after completing an Embedded Program or Em-
bedded Erase algorithm.
The reset command may be written between the se-
quence cycles in a program command sequence be-
fore programming begins. This resets the device to
reading array data (also applies to programming in
Erase Suspend mode). Once programming begins,
however, the device ignores reset commands until the
operation is complete.
After the device accepts an Erase Suspend command,
the device enters the Erase Suspend mode. The sys-
tem can read array data using the standard read tim-
ings, except that if it reads at an address within erase-
suspended sectors, the device outputs status data.
After completing a programming operation in the Erase
Suspend mode, the system may once again read array
data with the same exception. See “Erase Sus-
pend/Erase Resume Commands” for more information
on this mode.
The reset command may be written between the se-
quence cycles in an autoselect command sequence.
Once in the autoselect mode, the reset command must
be written to return to reading array data (also applies
to autoselect during Erase Suspend).
If DQ5 goes high during a program or erase operation,
writing the reset command returns the device to read-
ing array data (also applies during Erase Suspend).
The system must issue the reset command to re-en-
able the device for reading array data if DQ5 goes high,
or while in the autoselect mode. See the “Reset Com-
mand” section, next.
14
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
from a “0” back to a “1”. Attempting to do so may halt
Autoselect Command Sequence
the operation and set DQ5 to “1”, or cause the Data#
Polling algorithm to indicate the operation was suc-
cessful. However, a succeeding read will show that the
data is still “0”. Only erase operations can convert a “0”
to a “1”.
The autoselect command sequence allows the host
system to access the manufacturer and devices codes,
and determine whether or not a sector is protected.
The Command Definitions table shows the address
and data requirements. This method is an alternative to
that shown in the Autoselect Codes (High Voltage
Method) table, which is intended for PROM program-
mers and requires V on address bit A9.
ID
START
The autoselect command sequence is initiated by
writing two unlock cycles, followed by the autoselect
command. The device then enters the autoselect
mode, and the system may read at any address any
number of times, without initiating another command
sequence.
Write Program
Command Sequence
A read cycle at address XX00h or retrieves the manu-
facturer code. A read cycle at address XX01h in word
mode (or 02h in byte mode) returns the device code.
A read cycle containing a sector address (SA) and the
address 02h in word mode (or 04h in byte mode) re-
turns 01h if that sector is protected, or 00h if it is un-
protected. Refer to the Sector Address tables for valid
sector addresses.
Data Poll
from System
Embedded
Program
algorithm
in progress
Verify Data?
No
The system must write the reset command to exit the
autoselect mode and return to reading array data.
Yes
No
Word/Byte Program Command Sequence
Increment Address
Last Address?
Yes
The system may program the device by byte or word,
on depending on the state of the BYTE# pin. Program-
ming is a four-bus-cycle operation. The program com-
mand sequence is initiated by writing two unlock write
cycles, followed by the program set-up command. The
program address and data are written next, which in
turn initiate the Embedded Program algorithm. The
system is not required to provide further controls or tim-
ings. The device automatically provides internally gen-
erated program pulses and verify the programmed cell
margin. The Command Definitions take shows the ad-
dress and data requirements for the byte program com-
mand sequence.
Programming
Completed
Note: See the appropriate Command Definitions table for
program command sequence.
Figure 2. Program Operation
Chip Erase Command Sequence
When the Embedded Program algorithm is complete,
the device then returns to reading array data and ad-
dresses are no longer latched. The system can deter-
mine the status of the program operation by using DQ7,
DQ6, or RY/BY#. See “Write Operation Status” for in-
formation on these status bits.
Chip erase is a six-bus-cycle operation. The chip erase
command sequence is initiated by writing two unlock
cycles, followed by a set-up command. Two additional
unlock write cycles are then followed by the chip erase
command, which in turn invokes the Embedded Erase
algorithm. The device does not require the system to
preprogram prior to erase. The Embedded Erase algo-
rithm automatically preprograms and verifies the entire
memory for an all zero data pattern prior to electrical
erase. The system is not required to provide any con-
trols or timings during these operations. The Command
Definitions table shows the address and data require-
ments for the chip erase command sequence.
Any commands written to the device during the Em-
bedded Program Algorithm are ignored. Note that a
hardware reset immediately terminates the program-
ming operation. The program command sequence
should be reinitiated once the device has reset to read-
ing array data, to ensure data integrity.
Programming is allowed in any sequence and across
sector boundaries. A bit cannot be programmed
November 17, 2009 21504E8
Am29F800B
15
D A T A S H E E T
Any commands written to the chip during the Embed-
Once the sector erase operation has begun, only the
Erase Suspend command is valid. All other commands
are ignored. Note that a hardware reset during the
sector erase operation immediately terminates the op-
eration. The Sector Erase command sequence should
be reinitiated once the device has returned to reading
array data, to ensure data integrity.
ded Erase algorithm are ignored. Note that a hardware
reset during the chip erase operation immediately ter-
minates the operation. The Chip Erase command se-
quence should be reinitiated once the device has
returned to reading array data, to ensure data integrity.
The system can determine the status of the erase
operation by using DQ7, DQ6, DQ2, or RY/BY#. See
“Write Operation Status” for information on these
status bits. When the Embedded Erase algorithm is
complete, the device returns to reading array data
and addresses are no longer latched.
When the Embedded Erase algorithm is complete, the
device returns to reading array data and addresses are
no longer latched. The system can determine the sta-
tus of the erase operation by using DQ7, DQ6, DQ2, or
RY/BY#. Refer to “Write Operation Status” for informa-
tion on these status bits.
Figure 3 illustrates the algorithm for the erase opera-
tion. See the Erase/Program Operations tables in “AC
Characteristics” for parameters, and to the Chip/Sector
Erase Operation Timings for timing waveforms.
Figure 3 illustrates the algorithm for the erase opera-
tion. Refer to the Erase/Program Operations tables in
the “AC Characteristics” section for parameters, and to
the Sector Erase Operations Timing diagram for timing
waveforms.
Sector Erase Command Sequence
Sector erase is a six bus cycle operation. The sector
erase command sequence is initiated by writing two un-
lock cycles, followed by a set-up command. Two addi-
tional unlock write cycles are then followed by the
address of the sector to be erased, and the sector
erase command. The Command Definitions table
shows the address and data requirements for the sec-
tor erase command sequence.
Erase Suspend/Erase Resume Commands
The Erase Suspend command allows the system to in-
terrupt a sector erase operation and then read data
from, or program data to, any sector not selected for
erasure. This command is valid only during the sector
erase operation, including the 50 µs time-out period
during the sector erase command sequence. The
Erase Suspend command is ignored if written during
the chip erase operation or Embedded Program algo-
rithm. Writing the Erase Suspend command during the
Sector Erase time-out immediately terminates the
time-out period and suspends the erase operation. Ad-
dresses are “don’t-cares” when writing the Erase Sus-
pend command.
The device does not require the system to preprogram
the memory prior to erase. The Embedded Erase algo-
rithm automatically programs and verifies the sector for
an all zero data pattern prior to electrical erase. The
system is not required to provide any controls or tim-
ings during these operations.
After the command sequence is written, a sector erase
time-out of 50 µs begins. During the time-out period,
additional sector addresses and sector erase com-
mands may be written. Loading the sector erase buffer
may be done in any sequence, and the number of sec-
tors may be from one sector to all sectors. The time be-
tween these additional cycles must be less than 50 µs,
otherwise the last address and command might not be
accepted, and erasure may begin. It is recommended
that processor interrupts be disabled during this time to
ensure all commands are accepted. The interrupts can
be re-enabled after the last Sector Erase command is
written. If the time between additional sector erase
commands can be assumed to be less than 50 µs, the
system need not monitor DQ3. Any command other
than Sector Erase or Erase Suspend during the
time-out period resets the device to reading array
data. The system must rewrite the command sequence
and any additional sector addresses and commands.
When the Erase Suspend command is written during a
sector erase operation, the device requires a maximum
of 20 µs to suspend the erase operation. However,
when the Erase Suspend command is written during
the sector erase time-out, the device immediately ter-
minates the time-out period and suspends the erase
operation.
After the erase operation has been suspended, the
system can read array data from or program data to
any sector not selected for erasure. (The device “erase
suspends” all sectors selected for erasure.) Normal
read and write timings and command definitions apply.
Reading at any address within erase-suspended sec-
tors produces status data on DQ7–DQ0. The system
can use DQ7, or DQ6 and DQ2 together, to determine
if a sector is actively erasing or is erase-suspended.
See “Write Operation Status” for information on these
status bits.
The system can monitor DQ3 to determine if the sector
erase timer has timed out. (See the “DQ3: Sector Erase
Timer” section.) The time-out begins from the rising
edge of the final WE# pulse in the command sequence.
After an erase-suspended program operation is com-
plete, the system can once again read array data within
non-suspended sectors. The system can determine
the status of the program operation using the DQ7 or
16
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
DQ6 status bits, just as in the standard program oper-
ation. See “Write Operation Status” for more informa-
tion.
START
The system may also write the autoselect command
sequence when the device is in the Erase Suspend
mode. The device allows reading autoselect codes
even at addresses within erasing sectors, since the
codes are not stored in the memory array. When the
device exits the autoselect mode, the device reverts to
the Erase Suspend mode, and is ready for another
valid operation. See “Autoselect Command Sequence”
for more information.
Write Erase
Command Sequence
Data Poll
from System
Embedded
Erase
algorithm
in progress
The system must write the Erase Resume command
(address bits are “don’t care”) to exit the erase suspend
mode and continue the sector erase operation. Further
writes of the Resume command are ignored. Another
Erase Suspend command can be written after the de-
vice has resumed erasing.
No
Data = FFh?
Yes
Erasure Completed
Notes:
1. See the appropriate Command Definitions table for erase
command sequence.
2. See “DQ3: Sector Erase Timer” for more information.
Figure 3. Erase Operation
November 17, 2009 21504E8
Am29F800B
17
D A T A S H E E T
Command Definitions
Table 5. Am29F800B Command Definitions
Bus Cycles (Notes 2–5)
Command
Sequence
(Note 1)
First
Second
Third
Addr
Fourth
Fifth
Sixth
Addr Data Addr Data
Data Addr Data Addr Data Addr Data
Read (Note 6)
Reset (Note 7)
1
1
RA
XXX
555
RD
F0
Word
2AA
555
2AA
555
2AA
555
555
AAA
555
Manufacturer ID
4
4
4
AA
AA
AA
55
55
55
90
90
90
X00
01
Byte
Word
Byte
Word
Byte
AAA
555
X01 22D6
Device ID,
Top Boot Block
AAA
555
AAA
555
X02
X01
X02
D6
2258
58
Device ID,
Bottom Boot Block
AAA
AAA
XX00
XX01
00
(SA)
X02
Word
Byte
555
2AA
555
555
Sector Protect Verify
(Note 9)
4
AA
55
90
(SA)
X04
AAA
AAA
01
Word
Byte
Word
Byte
Word
Byte
555
AAA
555
2AA
555
2AA
555
2AA
555
555
AAA
555
Program
4
6
6
AA
AA
AA
55
55
55
A0
80
80
PA
PD
AA
AA
555
AAA
555
2AA
555
2AA
555
555
Chip Erase
55
55
10
30
AAA
555
AAA
555
AAA
Sector Erase
SA
AAA
XXX
XXX
AAA
AAA
Erase Suspend (Note 10)
Erase Resume (Note 11)
1
1
B0
30
Legend:
X = Don’t care
PD = Data to be programmed at location PA. Data latches on the
rising edge of WE# or CE# pulse, whichever happens first.
RA = Address of the memory location to be read.
SA = Address of the sector to be verified (in autoselect mode) or
erased. Address bits A18–A12 uniquely select any sector.
RD = Data read from location RA during read operation.
PA = Address of the memory location to be programmed.
Addresses latch on the falling edge of the WE# or CE# pulse,
whichever happens later.
Notes:
1. See Table 1 for description of bus operations.
8. The fourth cycle of the autoselect command sequence is a
read cycle.
2. All values are in hexadecimal.
9. The data is 00h for an unprotected sector and 01h for a
protected sector. See “Autoselect Command Sequence” See
“Autoselect Command Sequence” for more information.
3. Except when reading array or autoselect data, all bus cycles
are write operations.
4. Data bits DQ15–DQ8 are don’t cares for unlock and
command cycles.
10. The system may read and program in non-erasing sectors, or
enter the autoselect mode, when in the Erase Suspend
mode. The Erase Suspend command is valid only during a
sector erase operation.
5. Address bits A18–A11 are don’t cares for unlock and
command cycles, unless SA or PA required.
6. No unlock or command cycles required when reading array data.
11. The Erase Resume command is valid only during the Erase
Suspend mode.
7. The Reset command is required to return to reading array
data when device is in the autoselect mode, or if DQ5 goes
high (while the device is providing status data).
18
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
WRITE OPERATION STATUS
The device provides several bits to determine the sta-
tus of a write operation: DQ2, DQ3, DQ5, DQ6, DQ7,
and RY/BY#. Table 6 and the following subsections de-
scribe the functions of these bits. DQ7, RY/BY#, and
DQ6 each offer a method for determining whether a
program or erase operation is complete or in progress.
These three bits are discussed first.
Table 6 shows the outputs for Data# Polling on DQ7.
Figure 4 shows the Data# Polling algorithm.
START
DQ7: Data# Polling
Read DQ7–DQ0
Addr = VA
The Data# Polling bit, DQ7, indicates to the host
system whether an Embedded Algorithm is in
progress or completed, or whether the device is in
Erase Suspend. Data# Polling is valid after the rising
edge of the final WE# pulse in the program or erase
command sequence.
Yes
DQ7 = Data?
During the Embedded Program algorithm, the device
outputs on DQ7 the complement of the datum pro-
grammed to DQ7. This DQ7 status also applies to pro-
gramming during Erase Suspend. When the
Embedded Program algorithm is complete, the device
outputs the datum programmed to DQ7. The system
must provide the program address to read valid status
information on DQ7. If a program address falls within a
protected sector, Data# Polling on DQ7 is active for ap-
proximately 2 µs, then the device returns to reading
array data.
No
No
DQ5 = 1?
Yes
Read DQ7–DQ0
Addr = VA
During the Embedded Erase algorithm, Data# Polling
produces a “0” on DQ7. When the Embedded Erase al-
gorithm is complete, or if the device enters the Erase
Suspend mode, Data# Polling produces a “1” on DQ7.
This is analogous to the complement/true datum output
described for the Embedded Program algorithm: the
erase function changes all the bits in a sector to “1”;
prior to this, the device outputs the “complement,” or
“0.” The system must provide an address within any of
the sectors selected for erasure to read valid status in-
formation on DQ7.
Yes
DQ7 = Data?
No
PASS
FAIL
After an erase command sequence is written, if all sec-
tors selected for erasing are protected, Data# Polling
on DQ7 is active for approximately 100 µs, then the de-
vice returns to reading array data. If not all selected
sectors are protected, the Embedded Erase algorithm
erases the unprotected sectors, and ignores the se-
lected sectors that are protected.
Notes:
1. VA = Valid address for programming. During a sector
erase operation, a valid address is an address within any
sector selected for erasure. During chip erase, a valid
address is any non-protected sector address.
2. DQ7 should be rechecked even if DQ5 = “1” because
DQ7 may change simultaneously with DQ5.
When the system detects DQ7 has changed from the
complement to true data, it can read valid data at DQ7–
DQ0 on the following read cycles. This is because DQ7
may change asynchronously with DQ0–DQ6 while
Output Enable (OE#) is asserted low. The Data# Poll-
ing Timings (During Embedded Algorithms) figure in
the “AC Characteristics” section illustrates this.
Figure 4. Data# Polling Algorithm
November 17, 2009 21504E8
Am29F800B
19
D A T A S H E E T
The Write Operation Status table shows the outputs for
RY/BY#: Ready/Busy#
Toggle Bit I on DQ6. Refer to Figure 5 for the toggle bit
algorithm, and to the Toggle Bit Timings figure in the
“AC Characteristics” section for the timing diagram.
The DQ2 vs. DQ6 figure shows the differences be-
tween DQ2 and DQ6 in graphical form. See also the
subsection on “DQ2: Toggle Bit II”.
The RY/BY# is a dedicated, open-drain output pin that
indicates whether an Embedded Algorithm is in
progress or complete. The RY/BY# status is valid after
the rising edge of the final WE# pulse in the command
sequence. Since RY/BY# is an open-drain output, sev-
eral RY/BY# pins can be tied together in parallel with a
pull-up resistor to V
.
CC
DQ2: Toggle Bit II
If the output is low (Busy), the device is actively erasing
or programming. (This includes programming in the
Erase Suspend mode.) If the output is high (Ready),
the device is ready to read array data (including during
the Erase Suspend mode), or is in the standby mode.
The “Toggle Bit II” on DQ2, when used with DQ6, indi-
cates whether a particular sector is actively erasing
(that is, the Embedded Erase algorithm is in progress),
or whether that sector is erase-suspended. Toggle Bit
II is valid after the rising edge of the final WE# pulse in
the command sequence.
Table 6 shows the outputs for RY/BY#. The timing dia-
grams for read, reset, program, and erase shows the
relationship of RY/BY# to other signals.
DQ2 toggles when the system reads at addresses
within those sectors that have been selected for era-
sure. (The system may use either OE# or CE# to con-
trol the read cycles.) But DQ2 cannot distinguish
whether the sector is actively erasing or is erase-sus-
pended. DQ6, by comparison, indicates whether the
device is actively erasing, or is in Erase Suspend, but
cannot distinguish which sectors are selected for era-
sure. Thus, both status bits are required for sector and
mode information. Refer to Table 6 to compare outputs
for DQ2 and DQ6.
DQ6: Toggle Bit I
Toggle Bit I on DQ6 indicates whether an Embedded
Program or Erase algorithm is in progress or complete,
or whether the device has entered the Erase Suspend
mode. Toggle Bit I may be read at any address, and is
valid after the rising edge of the final WE# pulse in the
command sequence (prior to the program or erase op-
eration), and during the sector erase time-out.
During an Embedded Program or Erase algorithm op-
eration, successive read cycles to any address cause
DQ6 to toggle. (The system may use either OE# or
CE# to control the read cycles.) When the operation is
complete, DQ6 stops toggling.
Figure 5 shows the toggle bit algorithm in flowchart
form, and the section “DQ2: Toggle Bit II” explains the
algorithm. See also the “DQ6: Toggle Bit I” subsection.
Refer to the Toggle Bit Timings figure for the toggle bit
timing diagram. The DQ2 vs. DQ6 figure shows the dif-
ferences between DQ2 and DQ6 in graphical form.
After an erase command sequence is written, if all
sectors selected for erasing are protected, DQ6 tog-
gles for approximately 100 µs, then returns to reading
array data. If not all selected sectors are protected,
the Embedded Erase algorithm erases the unpro-
tected sectors, and ignores the selected sectors that
are protected.
Reading Toggle Bits DQ6/DQ2
Refer to Figure 5 for the following discussion. When-
ever the system initially begins reading toggle bit sta-
tus, it must read DQ7–DQ0 at least twice in a row to
determine whether a toggle bit is toggling. Typically, a
system would note and store the value of the toggle bit
after the first read. After the second read, the system
would compare the new value of the toggle bit with the
first. If the toggle bit is not toggling, the device has
completed the program or erase operation. The sys-
tem can read array data on DQ7–DQ0 on the following
read cycle.
The system can use DQ6 and DQ2 together to deter-
mine whether a sector is actively erasing or is erase-
suspended. When the device is actively erasing (that is,
the Embedded Erase algorithm is in progress), DQ6
toggles. When the device enters the Erase Suspend
mode, DQ6 stops toggling. However, the system must
also use DQ2 to determine which sectors are erasing
or erase-suspended. Alternatively, the system can use
DQ7 (see the subsection on “DQ7: Data# Polling”).
However, if after the initial two read cycles, the system
determines that the toggle bit is still toggling, the
system also should note whether the value of DQ5 is
high (see the section on DQ5). If it is, the system
should then determine again whether the toggle bit is
toggling, since the toggle bit may have stopped tog-
gling just as DQ5 went high. If the toggle bit is no longer
toggling, the device has successfully completed the
program or erase operation. If it is still toggling, the
device did not complete the operation successfully, and
If a program address falls within a protected sector,
DQ6 toggles for approximately 2 µs after the program
command sequence is written, then returns to reading
array data.
DQ6 also toggles during the erase-suspend-program
mode, and stops toggling once the Embedded Pro-
gram algorithm is complete.
20
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
the system must write the reset command to return to
erase command. If DQ3 is high on the second status
check, the last command might not have been ac-
cepted. Table 6 shows the outputs for DQ3.
reading array data.
The remaining scenario is that the system initially de-
termines that the toggle bit is toggling and DQ5 has not
gone high. The system may continue to monitor the
toggle bit and DQ5 through successive read cycles, de-
termining the status as described in the previous para-
graph. Alternatively, it may choose to perform other
system tasks. In this case, the system must start at the
beginning of the algorithm when it returns to determine
the status of the operation (top of Figure 5).
START
Read DQ7–DQ0
DQ5: Exceeded Timing Limits
DQ5 indicates whether the program or erase time has
exceeded a specified internal pulse count limit. Under
these conditions DQ5 produces a “1.” This is a failure
condition that indicates the program or erase cycle was
not successfully completed.
Read DQ7–DQ0
(Note 1)
No
The DQ5 failure condition may appear if the system
tries to program a “1” to a location that is previously pro-
grammed to “0.” Only an erase operation can change
a “0” back to a “1.” Under this condition, the device
halts the operation, and when the operation has ex-
ceeded the timing limits, DQ5 produces a “1.”
Toggle Bit
= Toggle?
Yes
No
Under both these conditions, the system must issue the
reset command to return the device to reading array
data.
DQ5 = 1?
Yes
DQ3: Sector Erase Timer
After writing a sector erase command sequence, the
system may read DQ3 to determine whether or not an
erase operation has begun. (The sector erase timer
does not apply to the chip erase command.) If addi-
tional sectors are selected for erasure, the entire time-
out also applies after each additional sector erase
command. When the time-out is complete, DQ3
switches from “0” to “1.” The system may ignore DQ3
if the system can guarantee that the time between ad-
ditional sector erase commands will always be less
than 50 µs. See also the “Sector Erase Command Se-
quence” section.
(Notes
1, 2)
Read DQ7–DQ0
Twice
Toggle Bit
= Toggle?
No
Yes
Program/Erase
Operation Not
Complete, Write
Reset Command
Program/Erase
Operation Complete
After the sector erase command sequence is written,
the system should read the status on DQ7 (Data# Poll-
ing) or DQ6 (Toggle Bit I) to ensure the device has ac-
cepted the command sequence, and then read DQ3. If
DQ3 is “1”, the internally controlled erase cycle has be-
gun; all further commands (other than Erase Suspend)
are ignored until the erase operation is complete. If
DQ3 is “0”, the device will accept additional sector
erase commands. To ensure the command has been
accepted, the system software should check the status
of DQ3 prior to and following each subsequent sector
Notes:
1. Read toggle bit twice to determine whether or not it is
toggling. See text.
2. Recheck toggle bit because it may stop toggling as DQ5
changes to “1”. See text.
Figure 5. Toggle Bit Algorithm
November 17, 2009 21504E8
Am29F800B
21
D A T A S H E E T
Table 6. Write Operation Status
DQ7
DQ5
DQ2
Operation
(Note 1)
DQ6
(Note 2)
DQ3
N/A
1
(Note 1)
RY/BY#
Embedded Program Algorithm
Embedded Erase Algorithm
DQ7#
0
Toggle
Toggle
0
0
No toggle
Toggle
0
0
Standard
Mode
Reading within Erase
Suspended Sector
1
No toggle
0
N/A
Toggle
1
Erase
Suspend Reading within Non-Erase
Data
Data
Data
0
Data
N/A
Data
N/A
1
0
Mode
Suspended Sector
Erase-Suspend-Program
DQ7#
Toggle
Notes:
1. DQ7 and DQ2 require a valid address when reading status information. Refer to the appropriate subsection for further details.
2. DQ5 switches to ‘1’ when an Embedded Program or Embedded Erase operation has exceeded the maximum timing limits.
See “DQ5: Exceeded Timing Limits” for more information.
22
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
ABSOLUTE MAXIMUM RATINGS
Storage Temperature
Plastic Packages . . . . . . . . . . . . . . .–65° C to +150°C
Ambient Temperature
with Power Applied. . . . . . . . . . . . . .–55° C to +125°C
20 ns
20 ns
+0.8 V
Voltage with Respect to Ground
V
(Note 1) . . . . . . . . . . . . . . . .–2.0 V to +7.0 V
–0.5 V
–2.0 V
CC
A9, OE#, and
RESET# (Note 2). . . . . . . . . . . .–2.0 V to +12.5 V
All other pins (Note 1) . . . . . . . . .–0.5 V to +7.0 V
Output Short Circuit Current (Note 3) . . . . . . 200 mA
20 ns
Figure 6. Maximum Negative
Overshoot Waveform
Notes:
1. Minimum DC voltage on input or I/O pins is –0.5 V. During
voltage transitions, input or I/O pins may undershoot VSS
to –2.0 V for periods of up to 20 ns. See Figure 6.
Maximum DC voltage on input or I/O pins is VCC +0.5 V.
During voltage transitions, input or I/O pins may overshoot
to VCC +2.0 V for periods up to 20 ns. See Figure 7.
20 ns
VCC
2. Minimum DC input voltage on pins A9, OE#, and RESET#
is –0.5 V. During voltage transitions, A9, OE#, and
RESET# may undershoot VSS to –2.0 V for periods of up
to 20 ns. See Figure 6. Maximum DC input voltage on pin
A9 is +12.5 V which may overshoot to +13.5 V for periods
up to 20 ns.
+2.0 V
VCC
+0.5 V
2.0 V
20 ns
20 ns
3. No more than one output may be shorted to ground at a
time. Duration of the short circuit should not be greater
than one second.
Figure 7. Maximum Positive
Overshoot Waveform
Note: Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device. This is
a stress rating only; functional operation of the device at
these or any other conditions above those indicated in the
operational sections of this data sheet is not implied.
Exposure of the device to absolute maximum rating
conditions for extended periods may affect device reliability.
OPERATING RANGES
Industrial (I) Devices
Ambient Temperature (T ) . . . . . . . . . –40°C to +85°C
A
Extended (E) Devices
Ambient Temperature (T ) . . . . . . . . –55°C to +125°C
A
V
Supply Voltages
CC
V
for all devices . . . . . . . . . . . . . . .+4.5 V to +5.5 V
CC
Note: Operating ranges define those limits between which
the functionality of the device is guaranteed.
November 17, 2009 21504E8
Am29F800B
23
D A T A S H E E T
DC CHARACTERISTICS
TTL/NMOS Compatible
Parameter
Description
Test Conditions
Min
Typ
Max
Unit
ILI
Input Load Current
VIN = VSS to VCC, VCC = VCC max
1.0
µA
VCC = VCC max
A9 = OE# = RESET# = 12.5 V
;
ILIT
ILO
A9, OE#, RESET Input Load Current
Output Leakage Current
35
1.0
40
µA
µA
VOUT = VSS to VCC
CE# = VIL, OE# = VIH,
f = 5 MHz, Byte Mode
19
19
mA
VCC Active Read Current
(Notes 1, 2)
ICC1
CE# = VIL, OE# = VIH,
50
60
mA
mA
f = 5 MHz, Word Mode
VCC Active Write Current
(Notes 2, 3 and 4)
ICC2
CE# = VIL, OE# = VIH
36
ICC3
VIL
VCC Standby Current (Notes 2, 5)
Input Low Voltage
CE#, OE#, and RESET# = VIH,
0.4
1
mA
V
–0.5
2.0
0.8
VCC
+ 0.5
VIH
VID
Input High Voltage
V
V
Voltage for Autoselect and Temporary
Sector Unprotect
VCC = 5.0 V
11.5
12.5
0.45
VOL
VOH
VLKO
Output Low Voltage
IOL = 5.8 mA, VCC = VCC min
IOH = –2.5 mA, VCC = VCC min
V
V
V
Output High Voltage
2.4
3.2
Low VCC Lock-Out Voltage (Note 4)
4.2
Notes:
1. The ICC current listed is typically less than 2 mA/MHz, with OE# at VIH.
2. Maximum ICC specifcations are tested with VCC = VCCmax
3. ICC active while Embedded Erase or Embedded Program is in progress.
4. Not 100% tested.
5. ICC3 = 20 µA max at extended temperature (>+85°C)
24
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
Test Conditions
DC CHARACTERISTICS
CMOS Compatible
Parameter
Description
Min
Typ
Max
Unit
VIN = VSS to VCC
VCC = VCC max
,
ILI
Input Load Current
1.0
µA
A9, OE#, RESET Input Load
Current
VCC = VCC max,
A9 = OE# = RESET = 12.5 V
ILIT
35
µA
µA
VOUT = VSS to VCC
VCC = VCC max
,
ILO
Output Leakage Current
1.0
CE# = VIL, OE# = VIH,
f = 5 MHz
Byte Mode
20
28
40
50
mA
mA
VCC Active Read Current
(Note 2)
ICC1
CE# = VIL, OE# = VIH,
f = 5 MHz
Word Mode
VCC Active Write Current
(Notes 1, 2, 3)
ICC2
CE# = VIL, OE# = VIH
30
50
5
mA
µA
CE# and RESET# = VCC 0.5 V,
OE# = VIH
ICC3
VCC Standby Current (Note 2)
0.3
VIL
VIH
Input Low Voltage
Input High Voltage
–0.5
0.8
V
V
0.7 x VCC
VCC + 0.3
Voltage for Autoselect and
Temporary Sector Unprotect
VID
VCC = 5.0 V
11.5
12.5
0.45
V
VOL
VOH1
VOH2
Output Low Voltage
IOL = 5.8 mA, VCC = VCC min
IOH = –2.5 mA, VCC = VCC min
IOH = –100 µA, VCC = VCC min
V
V
V
0.85 VCC
VCC–0.4
Output High Voltage
Low VCC Lock-Out Voltage
(Note 3)
VLKO
3.2
4.2
V
Notes:
1. ICC active while Embedded Erase or Embedded Program is in progress.
2. Maximum ICC specifcations are tested with VCC = VCCmax
3. Not 100% tested.
November 17, 2009 21504E8
Am29F800B
25
D A T A S H E E T
TEST CONDITIONS
Table 7. Test Specifications
All
5.0 V
Test Condition
-55
others
Unit
2.7 kΩ
Output Load
1 TTL gate
Device
Under
Test
Output Load Capacitance, CL
(including jig capacitance)
30
5
100
20
pF
C
L
6.2 kΩ
Input Rise and Fall Times
Input Pulse Levels
ns
V
0.0–3.0 0.45–2.4
Input timing measurement
reference levels
1.5
1.5
0.8, 2.0
0.8, 2.0
V
V
Note:
Output timing measurement
reference levels
Diodes are IN3064 or equivalents.
Figure 8. Test Setup
KEY TO SWITCHING WAVEFORMS
WAVEFORM
INPUTS
OUTPUTS
Steady
Changing from H to L
Changing from L to H
Don’t Care, Any Change Permitted
Does Not Apply
Changing, State Unknown
Center Line is High Impedance State (High Z)
26
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
AC CHARACTERISTICS
Read Operations
Parameter
Speed Options
JEDEC
Std
Description
Test Setup
-55
-70
Unit
tAVAV
tRC
Read Cycle Time (Note 1)
Min
55
70
ns
CE# = VIL
OE# = VIL
tAVQV
tACC Address to Output Delay
Max
55
70
ns
tELQV
tGLQV
tEHQZ
tCE
tOE
tDF
Chip Enable to Output Delay
OE# = VIL
Max
Max
Max
55
30
20
70
30
20
ns
ns
ns
Output Enable to Output Delay
Chip Enable to Output High Z (Note 1)
Output Enable to Output High Z
(Note 1)
tGHQZ
tDF
Max
Min
Min
20
20
ns
ns
ns
Read
0
Output Enable
tOEH Hold Time
(Note 1)
Toggle and
Data# Polling
10
Output Hold Time From Addresses, CE# or
OE#, Whichever Occurs First (Note 1)
tAXQX
tOH
Min
0
ns
Notes:
1. Not 100% tested.
2. See Figure 8 and Table 7 for test specifications.
tRC
Addresses Stable
tACC
Addresses
CE#
tDF
tOE
OE#
tOEH
WE#
tCE
tOH
HIGH Z
HIGH Z
Output Valid
Outputs
RESET#
RY/BY#
0 V
Figure 9. Read Operations Timings
November 17, 2009 21504E8
Am29F800B
27
D A T A S H E E T
AC CHARACTERISTICS
Hardware Reset (RESET#)
Parameter
JEDEC
Std Description
Test Setup
All Speed Options
Unit
RESET# Pin Low (During Embedded
Algorithms) to Read or Write (See Note)
tREADY
Max
Max
20
µs
RESET# Pin Low (NOT During Embedded
Algorithms) to Read or Write (See Note)
tREADY
500
ns
tRP
tRH
tRB
RESET# Pulse Width
Min
Min
Min
500
50
0
ns
ns
ns
RESET# High Time Before Read (See Note)
RY/BY# Recovery Time
Note:
Not 100% tested.
RY/BY#
CE#, OE#
RESET#
tRH
tRP
tReady
Reset Timings NOT during Embedded Algorithms
Reset Timings during Embedded Algorithms
tReady
RY/BY#
tRB
CE#, OE#
RESET#
tRP
Figure 10. RESET# Timings
28
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
AC CHARACTERISTICS
Word/Byte Configuration (BYTE#)
Parameter
Speed Options
JEDEC
Std
tELFL/ ELFH
tFLQZ
Description
-55
-70
Unit
ns
t
CE# to BYTE# Switching Low or High
BYTE# Switching Low to Output HIGH Z
BYTE# Switching High to Output Active
Max
Max
Min
5
20
55
20
70
ns
tFHQV
ns
CE#
OE#
BYTE#
tELFL
Data Output
(DQ0–DQ14)
Data Output
(DQ0–DQ7)
BYTE#
DQ0–DQ14
Switching
from word
to byte
Address
Input
DQ15
Output
mode
DQ15/A-1
BYTE#
tFLQZ
tELFH
BYTE#
Switching
from byte
to word
Data Output
(DQ0–DQ7)
Data Output
(DQ0–DQ14)
DQ0–DQ14
DQ15/A-1
mode
Address
Input
DQ15
Output
tFHQV
Figure 11. BYTE# Timings for Read Operations
CE#
The falling edge of the last WE# signal
WE#
BYTE#
tSET
(tAS
)
tHOLD (tAH
)
Note: Refer to the Erase/Program Operations table for tAS and tAH specifications.
Figure 12. BYTE# Timings for Write Operations
Am29F800B
November 17, 2009 21504E8
29
D A T A S H E E T
AC CHARACTERISTICS
Erase/Program Operations
Parameter
Speed Options
JEDEC
tAVAV
Std
tWC
tAS
Description
-55
-70
Unit
ns
Write Cycle Time (Note 1)
Address Setup Time
Address Hold Time
Data Setup Time
Min
Min
Min
Min
Min
Min
55
70
tAVWL
tWLAX
tDVWH
tWHDX
0
ns
tAH
45
25
45
30
ns
tDS
ns
tDH
tOES
Data Hold Time
0
0
ns
Output Enable Setup Time
ns
Read Recovery Time Before Write
(OE# High to WE# Low)
tGHWL
tGHWL
Min
0
ns
tELWL
tWHEH
tWLWH
tWHWL
tCS
tCH
CE# Setup Time
Min
Min
Min
Min
Typ
Typ
Typ
Min
Min
Max
0
0
ns
ns
ns
ns
CE# Hold Time
tWP
Write Pulse Width
Write Pulse Width High
30
35
tWPH
20
7
Byte
tWHWH1
tWHWH2
tWHWH1
Programming Operation (Note 2)
µs
Word
12
1
tWHWH2
tVCS
Sector Erase Operation (Note 2)
VCC Setup Time (Note 1)
sec
µs
50
0
tRB
Recovery Time from RY/BY#
Program/Erase Valid to RY/BY# Delay
ns
tBUSY
30
30
ns
Notes:
1. Not 100% tested.
2. See the “Erase and Programming Performance” section for more information.
30
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
AC CHARACTERISTICS
Program Command Sequence (last two cycles)
Read Status Data (last two cycles)
tAS
tWC
Addresses
555h
PA
PA
PA
tAH
CE#
OE#
tCH
tWHWH1
tWP
WE#
Data
tWPH
tCS
tDS
tDH
PD
DOUT
A0h
Status
tBUSY
tRB
RY/BY#
VCC
tVCS
Notes:
1. PA = program address, PD = program data, DOUT is the true data at the program address.
2. Illustration shows device in word mode.
Figure 13. Program Operation Timings
November 17, 2009 21504E8
Am29F800B
31
D A T A S H E E T
AC CHARACTERISTICS
tAS
SA
tWC
2AAh
VA
VA
Addresses
CE#
555h for chip erase
tAH
tCH
OE#
tWP
WE#
tWPH
tWHWH2
tCS
tDS
tDH
In
Data
Complete
55h
30h
Progress
10 for Chip Erase
tBUSY
tRB
RY/BY#
VCC
tVCS
Note: SA = Sector Address. VA = Valid Address for reading status data.
Figure 14. Chip/Sector Erase Operation Timings
32
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
AC CHARACTERISTICS
tRC
VA
Addresses
VA
VA
tACC
tCE
CE#
tCH
tOE
OE#
WE#
tOEH
tDF
tOH
High Z
High Z
DQ7
Valid Data
Complement
Complement
Status Data
True
DQ0–DQ6
Valid Data
Status Data
True
tBUSY
RY/BY#
Note:
VA = Valid address. Illustration shows first status cycle after command sequence, last status read cycle, and array data read cycle.
Figure 15. Data# Polling Timings (During Embedded Algorithms)
tRC
Addresses
CE#
VA
tACC
tCE
VA
VA
VA
tCH
tOE
OE#
WE#
tOEH
tDF
tOH
High Z
DQ6/DQ2
Valid Status
(first read)
Valid Status
Valid Status
Valid Data
(second read)
(stops toggling)
tBUSY
RY/BY#
Note:
VA = Valid address; not required for DQ6. Illustration shows first two status cycle after command sequence, last status read cycle,
and array data read cycle.
Figure 16. Toggle Bit Timings (During Embedded Algorithms)
November 17, 2009 21504E8
Am29F800B
33
D A T A S H E E T
AC CHARACTERISTICS
Enter
Embedded
Erasing
Erase
Suspend
Enter Erase
Suspend Program
Erase
Resume
Erase
Erase Suspend
Read
Erase
Suspend
Program
Erase
Complete
WE#
Erase
Erase Suspend
Read
DQ6
DQ2
Note: The system may use OE# or CE# to toggle DQ2 and DQ6. DQ2 toggles only when read at an address within the
erase-suspended sector.
Figure 17. DQ2 vs. DQ6
Temporary Sector Unprotect
Parameter
JEDEC
Std
Description
All Speed Options
Unit
tVIDR
VID Rise and Fall Time (See Note)
Min
Min
500
ns
RESET# Setup Time for Temporary Sector
Unprotect
tRSP
4
µs
Note: Not 100% tested.
12 V
RESET#
0 or 5 V
0 or 5 V
tVIDR
tVIDR
Program or Erase Command Sequence
CE#
WE#
tRSP
RY/BY#
Figure 18. Temporary Sector Unprotect Timing Diagram
34
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
AC CHARACTERISTICS
Alternate CE# Controlled Erase/Program Operations
Parameter
Speed Options
JEDEC
tAVAV
Std
tWC
tAS
Description
-55
-70
Unit
ns
Write Cycle Time (Note 1)
Address Setup Time
Address Hold Time
Data Setup Time
Min
Min
Min
Min
Min
Min
55
70
tAVEL
0
ns
tELAX
tDVEH
tEHDX
tAH
45
25
45
30
ns
tDS
ns
tDH
tOES
Data Hold Time
0
0
ns
Output Enable Setup Time
ns
Read Recovery Time Before Write
(OE# High to WE# Low)
tGHEL
tGHEL
Min
0
ns
tWLEL
tEHWH
tELEH
tEHEL
tWS
tWH
tCP
WE# Setup Time
WE# Hold Time
Min
Min
Min
Min
Typ
Typ
Typ
0
0
ns
ns
ns
ns
CE# Pulse Width
CE# Pulse Width High
30
35
tCPH
20
7
Byte
Programming Operation
(Note 2)
tWHWH1
tWHWH2
tWHWH1
tWHWH2
µs
Word
12
1
Sector Erase Operation (Note 2)
sec
Notes:
1. Not 100% tested.
2. See the “Erase and Programming Performance” section for more information.
November 17, 2009 21504E8
Am29F800B
35
D A T A S H E E T
AC CHARACTERISTICS
555 for program
PA for program
2AA for erase
SA for sector erase
555 for chip erase
Data# Polling
Addresses
PA
tWC
tWH
tAS
tAH
WE#
OE#
tGHEL
tWHWH1 or 2
tCP
CE#
Data
tWS
tCPH
tDS
tBUSY
tDH
DQ7#
DOUT
tRH
A0 for program
55 for erase
PD for program
30 for sector erase
10 for chip erase
RESET#
RY/BY#
Notes:
1. PA = Program Address, PD = Program Data, SA = Sector Address, DQ7# = Complement of Data Input, DOUT = Array Data.
2. Figure indicates the last two bus cycles of the command sequence, with the device in word mode.
Figure 19. Alternate CE# Controlled Write Operation Timings
36
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
ERASE AND PROGRAMMING PERFORMANCE
Parameter
Typ (Note 1)
Max (Note 3)
Unit
s
Comments
Sector Erase Time
1.0
19
7
8
Excludes 00h programming
prior to erasure (Note 4)
Chip Erase Time (Note 2)
Byte Programming Time
Word Programming Time
s
300
500
µs
µs
s
12
7.2
6.3
Excludes system level
overhead (Note 5)
Byte Mode
Word Mode
21.6
18.6
Chip Programming Time
(Note 2)
s
Notes:
1. Typical program and erase times assume the following conditions: 25°C, 5.0 V VCC, 1,000,000 cycles. Additionally,
programming typicals assume checkerboard pattern.
2. Under worst case conditions of 90°C, VCC = 4.5 V, 1,000,000 cycles.
3. The typical chip programming time is considerably less than the maximum chip programming time listed, since most bytes
program faster than the maximum program times listed.
4. In the pre-programming step of the Embedded Erase algorithm, all bytes are programmed to 00h before erasure.
5. System-level overhead is the time required to execute the four-bus-cycle sequence for the program command. See Table 5
for further information on command definitions.
6. The device has a guaranteed minimum erase and program cycle endurance of 1,000,000 cycles.
LATCHUP CHARACTERISTICS
Description
Min
Max
Input voltage with respect to VSS on all pins except I/O pins
(including A9, OE#, and RESET#)
–1.0 V
12.5 V
Input voltage with respect to VSS on all I/O pins
VCC Current
–1.0 V
VCC + 1.0 V
+100 mA
–100 mA
Includes all pins except VCC. Test conditions: VCC = 5.0 V, one pin at a time.
TSOP AND SO PIN CAPACITANCE
Parameter
Symbol
Parameter Description
Input Capacitance
Test Setup
VIN = 0
Typ
6
Max
7.5
12
Unit
pF
CIN
COUT
CIN2
Output Capacitance
Control Pin Capacitance
VOUT = 0
VIN = 0
8.5
7.5
pF
9
pF
Notes:
1. Sampled, not 100% tested.
2. Test conditions TA = 25°C, f = 1.0 MHz.
DATA RETENTION
Parameter
Test Conditions
Min
10
Unit
Years
Years
150°C
125°C
Minimum Pattern Data Retention Time
20
November 17, 2009 21504E8
Am29F800B
37
D A T A S H E E T
PHYSICAL DIMENSIONS
SO 044—44-Pin Small Outline Package
Dwg rev AC; 10/99
38
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
PHYSICAL DIMENSIONS (continued)
TS 048—48-Pin Standard Pinout Thin Small Outline Package (TSOP)
Dwg rev AA; 10/99
November 17, 2009 21504E8
Am29F800B
39
D A T A S H E E T
PHYSICAL DIMENSIONS (continued)
FBB048—48-Ball Fine-Pitch Ball Grid Array (FBGA) 6 x 9 mm package
Dwg rev AF; 10/99
40
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
REVISION SUMMARY
Revision A (August 1997)
Revision C+1 (April 1998)
Initial release.
Distinctive Characteristics
Changed typical program/erase current to 30 mA to
match the CMOS DC Characteristics table.
Revision B (October 1997)
Global
Changed minimum endurance to 1 million write cycles
per sector guaranteed.
Added -55 speed option. Changed data sheet designa-
tion from Advance Information to Preliminary.
AC Characteristics
Sector Protection/Unprotection
Erase/Program Operations: Corrected the notes refer-
Corrected text to indicate that these functions can only
be implemented using programming equipment.
ence for t
and t
. These parameters are
WHWH1
WHWH2
100% tested. Changed t and t specifications for 55
DS
CP
ns device. Changed t
to 12 µs.
word mode specification
WHWH1
Table 1, Device Bus Operations
Revised to indicate inputs for both CE# and RESET#
are required for standby mode.
Alternate CE# Controlled Erase/Program Operations:
Corrected the notes reference for t and t
These parameters are 100% tested. Changed t and
.
WHWH2
WHWH1
Program Command Sequence
DS
Changed to indicate Data# Polling is active for 2 µs
after a program command sequence if the sector spec-
ified is protected.
t
specifications for 55 ns device. Changed t
CP WHWH1
word mode specification to 12 µs.
Temporary Sector Unprotect Table
Sector Erase Command Sequence and DQ3: Sector
Erase Timer
Added note reference for t
100% tested.
. This parameter is not
VIDR
Corrected sector erase timeout to 50 µs.
Erase and Programming Performance
Erase Suspend Command
In Notes 1 and 6, changed the endurance specification
to 1 million cycles.
Changed to indicate that the device suspends the
erase operation a maximum of 20 µs after the rising
edge of WE#.
Revision C+2 (April 1998)
Product Selector Guide
DC Characteristics
Deleted the -55 speed option for V
= 5.0 V 5%.
Changed to indicate V min and max values are 11.5
CC
ID
Added the -55 speed option for V = 5.0 V 10%.
to 12.5 V, with a V
test condition of 5.0 V. Added
CC
CC
typical values to TTL table. Revised CMOS typical
standby current (I ).
Ordering Information
CC3
Valid Combinations for Am29F800BT-55 and
Am29F800BB-55: Added the extended temperature
range for all package types.
Figure 14: Chip/Sector Erase Operation Timings;
Figure 19: Alternate CE# Controlled Write
Operation TImings
Operating Ranges
Corrected hexadecimal values in address and data
waveforms. In Figure 19, corrected data values for chip
and sector erase.
V
Supply Voltages: Deleted “V for 5% devices .
CC
CC
. . . +4.75 V to +5.25 V”. Changed “V
devices . . . . +4.5 V to +5.5 V” to “V for all devices .
. . . +4.5 V to +5.5 V”.
for 10%
CC
CC
Erase and Programming Performance
Corrected word and chip programming times.
Erase and Programming Performance
Note 2: Deleted “(4.75 V for -55)”.
Revision C (January 1998)
Global
Formatted for consistency with other 5.0 volt-only
data sheets.
November 17, 2009 21504E8
Am29F800B
41
D A T A S H E E T
REVISION SUMMARY (Continued)
Revision D (January 1999)
Distinctive Characteristics
Revision E3 (December 22, 2005)
Global
Added the 20-year data retention subbullet.
Deleted reverse TSOP package option and 150 ns
speed option.
Ordering Information
Optional Processing: Deleted “B = Burn-in”.
Revision E4 (May 19, 2006)
Added “Not recommended for new designs” note.
AC Characteristics
DC Characteristics—TTL/NMOS Compatible
I
: Added OE# and RESET to the Description column.
LIT
Changed “A9 = 12.5 V” to “A9 = OE# = RESET = 12.5
V” in the Test Conditions column.
Changed t
specification to maximium value.
BUSY
I
, I
, I
: Deleted “V
= V
max” in
CC
Revision E5 (November 2, 2006)
Deleted “Not recommended for new designs” note.
LO
CC1
CC2
CC
Test Conditions.
I
: Added Note 4, “I
= 20 µA max at extended
CC3
CC3
Revision E6 (March 3, 2009)
Global
temperatures (>+85°C)”.
DC Characteristics—CMOS Compatible
: Added OE# and RESET to the Description column.
Added obsolescence information.
I
LIT
Changed “A9 = 12.5 V” to “A9 = OE# = RESET = 12.5
V” in the Test Conditions column.
Revision E7 (August 3, 2009)
Global
I
, I
, I
: Deleted “V
= V max”; added
CC CC
CC1 CC2 CC3
Note 2 “Maximum I
specifications are tested with
Removed obsolescence information.
CC
V
= V max”.
CC
CC
Revision E8 (November 17, 2009)
Global
Revision D+1 (March 23, 1999)
Command Definitions table
Removed 90 ns and 120 ns speed options.
Corrected SA definition in legend; range should be
A18–A12. In Note 4, A17 should be A18.
Removed all commercial temperature range options.
Revision D+2 (July 2, 1999)
Global
Added references to availability of device in Known
Good Die (KGD) form.
Revision E (November 16, 1999)
AC Characteristics—Figure 13. Program
Operations Timing and Figure 14. Chip/Sector
Erase Operations
Deleted t
high.
and changed OE# waveform to start at
GHWL
Physical Dimensions
Replaced figures with more detailed illustrations.
Revision E+1 (August 4, 2000)
Global
Added FBGA package.
Revision E+2 (June 4, 2004)
Ordering Information
Added Pb-Free OPNs.
42
Am29F800B
21504E8 November 17, 2009
D A T A S H E E T
Colophon
The products described in this document are designed, developed and manufactured as contemplated for general use, including without
limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as
contemplated (1) for any use that includes fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the
public, and could lead directly to death, personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear facility,
aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system), or (2) for
any use where chance of failure is intolerable (i.e., submersible repeater and artificial satellite). Please note that Spansion will not be liable to
you and/or any third party for any claims or damages arising in connection with above-mentioned uses of the products. Any semiconductor
devices have an inherent chance of failure. You must protect against injury, damage or loss from such failures by incorporating safety design
measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal
operating conditions. If any products described in this document represent goods or technologies subject to certain restrictions on export under
the Foreign Exchange and Foreign Trade Law of Japan, the US Export Administration Regulations or the applicable laws of any other country,
the prior authorization by the respective government entity will be required for export of those products.
Trademarks and Notice
The contents of this document are subject to change without notice. This document may contain information on a Spansion product under
development by Spansion. Spansion reserves the right to change or discontinue work on any product without notice. The information in this
document is provided as is without warranty or guarantee of any kind as to its accuracy, completeness, operability, fitness for particular purpose,
merchantability, non-infringement of third-party rights, or any other warranty, express, implied, or statutory. Spansion assumes no liability for any
damages of any kind arising out of the use of the information in this document.
Copyright © 1999–2005 Advanced Micro Devices, Inc. All rights reserved. AMD, the AMD logo, and combinations thereof are registered
trademarks of Advanced Micro Devices, Inc. Product names used in this publication are for identification purposes only and may be trademarks
of their respective companies.
Copyright © 2006-2009 Spansion Inc. All rights reserved. Spansion®, the Spansion logo, MirrorBit®, MirrorBit® Eclipse™, ORNAND™,
EcoRAM™ and combinations thereof, are trademarks and registered trademarks of Spansion LLC in the United States and other countries.
Other names used are for informational purposes only and may be trademarks of their respective owners.
November 17, 2009 21504E8
Am29F800B
43
AM29F800BT-70WBK 相关器件
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AM29F800BT-90DGC | AMD | 8 Megabit (1 M x 8-Bit/512 K x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory-Die Revision 1 | 获取价格 | |
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