AT27BV040 [ATMEL]
4 Megabit 512K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM; 4兆位512K ×8不稳定电池电压高速CMOS OTP EPROM
| 型号： | AT27BV040 |
| 厂家： | 
ATMEL |
| 描述： | 4 Megabit 512K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM |
| 文件： | 总9页 (文件大小：209K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AT27BV040
Features
Fast Read Access Time - 120 ns
Dual Voltage Range Operation
•
•
Unregulated Battery Power Supply Range, 2.7V to 3.6V
or Standard 5V ± 10% Supply Range
Compatible with JEDEC Standard AT27C040
Low Power CMOS Operation
•
•
20 µA max. (less than 1 µA typical) Standby for VCC = 3.6V
29 mW max. Active at 5 MHz for VCC = 3.6V
JEDEC Standard Packages
4 Megabit
(512K x 8)
•
32-Lead PLCC
32-Lead TSOP
High Reliability CMOS Technology
•
2,000V ESD Protection
Unregulated
Battery-Voltage
High Speed
OTP
200 mA Latchup Immunity
Rapid Programming Algorithm - 100 µs/byte (typical)
CMOS and TTL Compatible Inputs and Outputs
JEDEC Standard for LVTTL and LVBO
Integrated Product Identification Code
Commercial and Industrial Temperature Ranges
•
•
•
•
Description
CMOS EPROM
The AT27BV040 chip is a high performance, low power, low voltage, 4,194,304 bit
one-time programmable read only memory (EPROM) organized as 512K by 8 bits. It
requires only one supply in the range of 2.7 to 3.6V in normal read mode operation,
making it ideal for fast, portable systems using either regulated or unregulated battery
power.
Atmel’s innovative design techniques provide fast speeds that rival 5V parts while
keeping the low power consumption of a 3V supply. At V = 2.7V, any byte can be
CC
accessed in less than 100 ns. With a typical power dissipation of only 18 mW at 5
MHz and V
= 3V, the AT27BV040 consumes less than one fifth the power of a
CC
standard 5V EPROM. Standby mode supply current is typically less than 1 µA at 3V.
The AT27BV040 simplifies system design and stretches battery lifetime even further
by eliminating the need for power supply regulation.
(continued)
Pin Configurations
Pin Name
A0 - A18
O0 - O7
CE
Function
AT27BV040
Addresses
Outputs
Chip Enable
Output Enable
OE
PLCC Top View
TSOP Top View
Type 1
0346C
3-53
Description (Continued)
System Considerations
Switching between active and standby conditions via the
Chip Enable pin may produce transient voltage excur-
sions. Unless accommodated by the system design, these
transients may exceed data sheet limits, resulting in de-
vice non-conformance. At a minimum, a 0.1 µF high fre-
quency, low inherent inductance, ceramic capacitor
should be utilized for each device. This capacitor should
The AT27BV040 is available in industry standard JEDEC-
approved one-time programmable (OTP) plastic PLCC
and TSOP packages. All devices feature two-line control
(CE, OE) to give designers the flexibility to prevent bus
contention.
The AT27BV040 operating with V at 3.0V produces TTL
CC
level outputs that are compatible with standard TTL logic
be connected between the V and Ground terminals of
CC
devices operating at V = 5.0V. At V = 2.7V, the part
CC
CC
the device, as close to the device as possible. Additionally,
to stabilize the supply voltage level on printed circuit
boards with large EPROM arrays, a 4.7 µF bulk electrolytic
capacitor should be utilized, again connected between the
is compatible with JEDEC approved low voltage battery
operation (LVBO) interface specifications. The device is
also capable of standard 5-volt operation making it ideally
suited for dual supply range systems or card products that
are pluggable in both 3-volt and 5-volt hosts.
V
and Ground terminals. This capacitor should be posi-
CC
tioned as close as possible to the point where the power
supply is connected to the array.
Atmel’s AT27BV040 has additional features to ensure
high quality and efficient production use. The Rapid Pro-
gramming Algorithm reduces the time required to program
the part and guarantees reliable programming. Program-
ming time is typically only 100 µs/byte. The Integrated
Product Identification Code electronically identifies the de-
vice and manufacturer. This feature is used by industry
standard programming equipment to select the proper
programming algorithms and voltages. The AT27BV040
programs exactly the same way as a standard 5V
AT27C040 and uses the same programming equipment.
3-54
AT27BV040
AT27BV040
Block Diagram
Absolute Maximum Ratings*
Temperature Under Bias .................. -40°C to +85°C
Storage Temperature...................... -65°C to +125°C
Voltage on Any Pin with
(1)
Respect to Ground......................... -2.0V to +7.0V
Voltage on A9 with
Respect to Ground ......................-2.0V to +14.0V
(1)
V
Supply Voltage with
PP
(1)
Respect to Ground.......................-2.0V to +14.0V
*NOTICE: Stresses beyond those listed under “Absolute Maxi-
mum Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of the
device at these or any other conditions beyond those indi-
cated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions
for extended periods may affect device reliability.
Note: 1. Minimum voltage is -0.6V dc which may undershoot
to -2.0V for pulses of less than 20 ns. Maximum out-
put pin voltage is VCC + 0.75V dc which may be ex-
ceeded if certain precautions are observed (consult
application notes) and which may overshoot to
+7.0V for pulses of less than 20 ns.
Operating Modes
CE
OE
Ai
V
V
CC
Mode \ Pin
Outputs
PP
(1)
(2)
(2)
(2)
(3)
(3)
(3)
(2)
Read
V
IL
V
Ai
X
V
D
OUT
IL
CC
CC
CC
CC
CC
CC
(2)
Output Disable
X
V
IH
X
X
X
V
V
V
V
V
High Z
High Z
(2)
Standby
V
X
X
Ai
IH
(3)
Rapid Program
V
IL
V
IH
V
D
D
PP
PP
PP
IN
(3)
PGM Verify
X
V
Ai
V
V
IL
OUT
(3)
PGM Inhibit
V
V
IH
X
High Z
IH
(4)
A9 = V
H
Identification
Code
(3)
(3, 5)
Product Identification
V
IL
V
A0 = V or V
A1 - A18 = V
X
V
CC
IL
IH
IL
IL
Notes: 1. X can be VIL or VIH.
4. VH = 12.0 ± 0.5V.
2. Read, output disable, and standby modes require,
2.7V ≤ VCC ≤ 3.6V, or 4.5V ≤ VCC ≤ 5.5V.
3. Refer to Programming Characteristics. Programming
modes require VCC = 6.5V.
5. Two identifier bytes may be selected. All Ai inputs are held
low (VIL), except A9 which is set to VH and A0 which is
toggled low (VIL) to select the Manufacturer’s Identification
byte and high (VIH) to select the Device Code byte.
3-55
DC and AC Operating Conditions for Read Operation
AT27BV040
-12
-15
Com.
Ind.
0°C - 70°C
-40°C - 85°C
2.7V to 3.6V
5V ± 10%
0°C - 70°C
-40°C - 85°C
2.7V to 3.6V
5V ± 10%
Operating Temperature
(Case)
V
Power Supply
CC
= Preliminary Information
DC and Operating Characteristics for Read Operation
Symbol Parameter
Condition
Min
Max
Units
VCC = 2.7V to 3.6V
I
I
I
Input Load Current
V
V
V
= 0V to V
CC
±1
±5
10
20
µA
µA
µA
µA
LI
IN
Output Leakage Current
= 0V to V
CC
LO
PP1
OUT
(2)
(1)
V
Read/Standby Current
= V
CC
PP
PP
SB1
SB2
I
I
(CMOS), CE = V ± 0.3V
CC
(1)
I
V
Standby Current
SB
CC
CC
100
8
µA
mA
V
(TTL), CE = 2.0 to V + 0.5V
CC
I
V
Active Current
f = 5 MHz, I
= 0 mA, CE = V , V = 3.6V
IL CC
CC
OUT
V
V
V
V
= 3.0 to 3.6V
= 2.7 to 3.6V
= 3.0 to 3.6V
= 2.7 to 3.6V
-0.6
-0.6
0.8
CC
CC
CC
CC
V
V
Input Low Voltage
Input High Voltage
IL
0.2 x V
V
CC
2.0
V
+ 0.5
+ 0.5
V
CC
CC
IH
0.7 x V
V
V
CC
I
I
I
I
I
I
= 2.0 mA
= 100 µA
= 20 µA
0.4
V
OL
OL
OL
OH
OH
OH
V
V
Output Low Voltage
Output High Voltage
OL
0.2
0.1
V
V
= -2.0 mA
= -100 µA
= -20 µA
2.4
V
OH
V
V
- 0.2
- 0.1
V
CC
V
CC
VCC = 4.5V to 5.5V
I
I
I
Input Load Current
V
V
V
= 0V to V
CC
±1
±5
10
100
1
µA
µA
µA
µA
mA
mA
V
LI
IN
Output Leakage Current
= 0V to V
CC
LO
PP1
OUT
(2)
(1)
V
Read/Standby Current
= V
CC
PP
PP
SB1
SB2
I
I
(CMOS), CE = V ± 0.3V
CC
(1)
I
SB
V
Standby Current
CC
(TTL), CE = 2.0 to V + 0.5V
CC
I
V
Active Current
f = 5 MHz, I
= 0 mA, CE = V
IL
30
0.8
CC
CC
OUT
V
V
V
V
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
-0.6
IL
2.0
V
+ 0.5
V
IH
CC
I
OL
= 2.1 mA
0.4
V
OL
OH
I
= -400 µA
2.4
V
OH
2. VPP may be connected directly to VCC, except during pro-
gramming. The supply current would then be the sum of ICC
Notes: 1. VCC must be applied simultaneously with or before
V
PP, and removed simultaneously with or after VPP.
and IPP
.
3-56
AT27BV040
AT27BV040
AC Characteristics for Read Operation (VCC = 2.7V to 3.6V and 4.5V to 5.5V)
AT27BV040
-12
-15
Min
Max
120
120
50
Min
Max
150
150
60
Symbol Parameter
Condition
Units
ns
(3)
t
t
t
t
Address to Output Delay
CE to Output Delay
OE to Output Delay
CE = OE = V
ACC
IL
(2)
OE = V
ns
CE
OE
DF
IL
(2, 3)
(4, 5)
CE = V
ns
IL
OE or CE High to Output Float, whichever occurred first
40
50
ns
Output Hold from Address, CE or OE,
whichever occurred first
t
0
0
ns
OH
Notes:
2, 3, 4, 5. - see AC Waveforms for Read Operation.
= Preliminary Information
AC Waveforms for Read Operation (1)
Notes: 1. Timing measurement references are 0.8V and 2.0V.
Input AC drive levels are 0.45V and 2.4V. See Input
Test Waveforms and Measurement Levels.
4. This parameter is only sampled and is not 100% tested.
5. Output float is defined as the point when data is no longer
driven.
2. OE may be delayed up to tCE-tOE after the falling
edge of CE without impact on tCE
3. OE may be delayed up to tACC-tOE after the address
is valid without impact on tACC
.
.
3-57
Input Test Waveform and Measurement Level
Output Test Load
tR, tF < 20 ns (10% to 90%)
Note: CL = 100 pF
including jig capacitance.
Pin Capacitance (f = 1 MHz, T = 25°C) (1)
Typ
4
Max
8
Units
pF
Conditions
C
C
V
V
= 0V
IN
IN
8
12
pF
= 0V
OUT
OUT
Note: 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
3-58
AT27BV040
AT27BV040
Programming Waveforms (1)
Notes: 1. The Input Timing Reference is 0.8V for VIL and
2.0V for VIH.
3. When programming the AT27BV040 a 0.1 µF capacitor
is required across VPP and ground to suppress spuri-
ous voltage transients.
2. tOE and tDFP are characteristics of the device but
must be accommodated by the programmer.
DC Programming Characteristics
TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V
Test
Limits
Symbol
Parameter
Conditions
Min
Units
µA
V
Max
Input Load Current
Input Low Level
Input High Level
Output Low Voltage
Output High Voltage
VIN = VIL, VIH
±10
0.8
I
LI
-0.6
2.0
V
V
V
V
IL
VCC + 0.7
0.4
V
IH
IOL = 2.1 mA
V
OL
OH
IOH = -400 µA
2.4
V
VCC Supply Current
(Program and Verify)
40
mA
I
CC2
PP2
VPP Supply
Current
CE = VIL
20
mA
V
I
A9 Product Identification Voltage
11.5
12.5
V
ID
3-59
RapidProgramming Algorithm
AC Programming Characteristics
A 100 µs CE pulse width is used to program. The address
TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V
is set to the first location. V is raised to 6.5V and V is
CC
PP
raised to 13.0V. Each address is first programmed with
one 100 µs CE pulse without verification. Then a verifica-
tion/reprogramming loop is executed for each address. In
the event a byte fails to pass verification, up to 10 succes-
sive 100 µs pulses are applied with a verification after
each pulse. If the byte fails to verify after 10 pulses have
been applied, the part is considered failed. After the byte
verifies properly, the next address is selected until all have
Test
Sym-
bol
Limits
Min Max
Conditions* (1)
Parameter
Units
µs
Address Setup Time
OE Setup Time
2
2
t
t
AS
µs
OES
Data Setup
Time
2
µs
t
DS
Address Hold Time
Data Hold Time
0
2
µs
µs
t
t
AH
been checked. V is then lowered to 5.0V and V
to
PP
CC
DH
5.0V. All bytes are read again and compared with the
original data to determine if the device passes or fails.
OE High to Out-
0
2
2
130
ns
µs
µs
put Float Delay (2)
t
t
t
DFP
VPS
VCS
VPP Setup Time
VCC Setup
Time
CE Program
95
105
150
µs
ns
ns
Pulse Width (3)
t
t
t
PW
Data Valid
from OE (2)
OE
VPP Pulse Rise Time During
Programming
50
PRT
*AC Conditions of Test:
Input Rise and Fall Times (10% to 90%)...............20 ns
Input Pulse Levels....................................0.45V to 2.4V
Input Timing Reference Level....................0.8V to 2.0V
Output Timing Reference Level.................0.8V to 2.0V
Notes: 1. VCC must be applied simultaneously or before VPP
and removed simultaneously or after VPP
.
2. This parameter is only sampled and is not 100%
tested. Output Float is defined as the point where
data is no longer driven —see timing diagram.
3. Program Pulse width tolerance is 100 µsec ± 5%.
Atmel’s 27BV040 Integrated
Product Identification Code (1)
Pins
Hex
Codes
Data
A0 O7 O6 O5 O4 O3 O2 O1 O0
Manufacturer
Device Type
0
1
0
0
0
0
0
0
1
0
1
1
1
0
1
1
0
1
1E
0B
Note: 1. The AT27BV040 has the same Product Identification
Code as the AT27C040. Both are programming
compatible.
3-60
AT27BV040
AT27BV040
Ordering Information
I
(mA)
CC
t
ACC
V
= 3.6V
CC
Ordering Code
Package
Operation Range
(ns)
Active
Standby
120
8
0.02
0.02
0.02
0.02
AT27BV040-12JC
AT27BV040-12TC
32J
32T
Commercial
(0°C to 70°C)
8
8
8
AT27BV040-12JI
AT27BV040-12TI
32J
32T
Industrial
(-40°C to 85°C)
150
AT27BV040-15JC
AT27BV040-15TC
32J
32T
Commercial
(0°C to 70°C)
AT27BV040-15JI
AT27BV040-15TI
32J
32T
Industrial
(-40°C to 85°C)
= Preliminary Information
Package Type
32J
32T
32 Lead, Plastic J-Leaded Chip Carrier (PLCC)
32 Lead, Plastic Thin Small Outline Package (TSOP)
3-61
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