EN25Q64-104HIP [EON]
64 Megabit Serial Flash Memory with 4Kbyte Uniform Sector; 64兆位串行闪存与4K字节扇区制服型号: | EN25Q64-104HIP |
厂家: | EON SILICON SOLUTION INC. |
描述: | 64 Megabit Serial Flash Memory with 4Kbyte Uniform Sector |
文件: | 总60页 (文件大小:1163K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
EN25Q64
EN25Q64
64 Megabit Serial Flash Memory with 4Kbyte Uniform Sector
FEATURES
• Single power supply operation
- Full voltage range: 2.7-3.6 volt
• Software and Hardware Write Protection:
- Write Protect all or portion of memory via
software
• Serial Interface Architecture
- SPI Compatible: Mode 0 and Mode 3
- Enable/Disable protection with WP# pin
• High performance program/erase speed
- Page program time: 1.3ms typical
- Sector erase time: 60ms typical
- Block erase time 300ms typical
- Chip erase time: 30 seconds typical
• 64 M-bit Serial Flash
- 64 M-bit/8192 K-byte/32768 pages
- 256 bytes per programmable page
• Standard, Dual or Quad SPI
- Standard SPI: CLK, CS#, DI, DO, WP#
- Dual SPI: CLK, CS#, DQ0, DQ1, WP#
- Quad SPI: CLK, CS#, DQ0, DQ1, DQ2, DQ3
• Lockable 512 byte OTP security sector
• Minimum 100K endurance cycle
• High performance
• Package Options
- 104MHz clock rate for one data bit
- 80MHz clock rate for two data bits
- 50MHz clock rate for four data bits
- 8 pins SOP 200mil body width
- 8 contact VDFN (5x6mm)
- 8 contact VDFN (6x8mm)
- 8 pins PDIP
- 16 pins SOP 300mil body width
- 24 balls TFBGA (6x8mm)
- All Pb-free packages are RoHS compliant
• Low power consumption
- 12 mA typical active current
- 1 μA typical power down current
• Uniform Sector Architecture:
- 2048 sectors of 4-Kbyte
• Industrial temperature Range
- 128 blocks of 64-Kbyte
- Any sector or block can be erased individually
GENERAL DESCRIPTION
The EN25Q64 is a 64 Megabit (8192K-byte) Serial Flash memory, with advanced write protection
mechanisms. The EN25Q64 supports the standard Serial Peripheral Interface (SPI), and a high
performance Dual output as well as Quad I/O using SPI pins: Serial Clock, Chip Select, Serial DQ0(DI),
DQ1(DO), DQ2(WP#) and DQ3(NC). SPI clock frequencies of up to 80MHz are supported allowing
equivalent clock rates of 160MHz for Dual Output when using the Dual Output Fast Read instructions,
and SPI clock frequencies of up to 50MHz are supported allowing equivalent clock rates of 200MHz for
Quad Output when using the Quad Output Fast Read instructions. The memory can be programmed 1
to 256 bytes at a time, using the Page Program instruction.
The EN25Q64 is designed to allow either single Sector/Block at a time or full chip erase operation. The
EN25Q64 can be configured to protect part of the memory as the software protected mode. The device
can sustain a minimum of 100K program/erase cycles on each sector or block.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
1
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure.1 CONNECTION DIAGRAMS
CS#
VCC
1
2
3
4
8
7
6
5
DO (DQ1)
WP# (DQ2)
VSS
NC (DQ3)
CLK
DI (DQ0)
8 - LEAD SOP / PDIP
CS#
VCC
1
2
3
4
8
7
6
5
DO (DQ1)
WP# (DQ2)
VSS
NC (DQ3)
CLK
DI (DQ0)
8 - LEAD VDFN
16 - LEAD SOP
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
2
Rev. J, Issue Date: 2011/07/07
EN25Q64
Top View, Balls Facing Down
24 - Ball TFBGA
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
3
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 2. BLOCK DIAGRAM
Note:
1. DQ0 and DQ1 are used for Dual and Quad instructions.
2. DQ0 ~ DQ3 are used for Quad instructions.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
4
Rev. J, Issue Date: 2011/07/07
EN25Q64
Table 1. Pin Names
Symbol
CLK
Pin Name
Serial Clock Input
*1
DI (DQ0)
DO (DQ1)
CS#
Serial Data Input (Data Input Output 0)
*1
Serial Data Output (Data Input Output 1)
Chip Enable
*2
WP# (DQ2)
NC(DQ3)
Vcc
Write Protect (Data Input Output 2)
*2
Not Connect (Data Input Output 3)
Supply Voltage (2.7-3.6V)
Ground
Vss
No Connect
NC
Note:
1. DQ0 and DQ1 are used for Dual and Quad instructions.
2. DQ0 ~ DQ3 are used for Quad instructions.
SIGNAL DESCRIPTION
Serial Data Input, Output and IOs (DI, DO and DQ0, DQ1, DQ2, DQ3)
The EN25Q64 support standard SPI, Dual SPI and Quad SPI operation. Standard SPI instructions use
the unidirectional DI (input) pin to serially write instructions, addresses or data to the device on the
rising edge of the Serial Clock (CLK) input pin. Standard SPI also uses the unidirectional DO (output) to
read data or status from the device on the falling edge CLK.
Dual and Quad SPI instruction use the bidirectional IO pins to serially write instruction, addresses or
data to the device on the rising edge of CLK and read data or status from the device on the falling edge
of CLK.
Serial Clock (CLK)
The SPI Serial Clock Input (CLK) pin provides the timing for serial input and output operations. ("See
SPI Mode")
Chip Select (CS#)
The SPI Chip Select (CS#) pin enables and disables device operation. When CS# is high the device is
deselected and the Serial Data Output (DO, or DQ0, DQ1, DQ2 and DQ3) pins are at high impedance.
When deselected, the devices power consumption will be at standby levels unless an internal erase,
program or status register cycle is in progress. When CS# is brought low the device will be selected,
power consumption will increase to active levels and instructions can be written to and data read from
the device. After power-up, CS# must transition from high to low before a new instruction will be
accepted.
Write Protect (WP#)
The Write Protect (WP#) pin can be used to prevent the Status Register from being written. Used in
conjunction with the Status Register’s Block Protect (BP0, BP1, BP2 and BP3) bits and Status Register
Protect (SRP) bits, a portion or the entire memory array can be hardware protected. The WP# function
is only available for standard SPI and Dual SPI operation, when during Quad SPI, this pin is the Serial
Data IO (DQ2) for Quad I/O operation.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
5
Rev. J, Issue Date: 2011/07/07
EN25Q64
MEMORY ORGANIZATION
The memory is organized as:
z
z
8,388,608 bytes
Uniform Sector Architecture
128 blocks of 64-Kbyte
2048 sectors of 4-Kbyte
32768 pages (256 bytes each)
z
Each page can be individually programmed (bits are programmed from 1 to 0). The device is Sector,
Block or Chip Erasable but not Page Erasable.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
6
Rev. J, Issue Date: 2011/07/07
EN25Q64
Table 2. Uniform Block Sector Architecture ( 1/4 )
Block
127
Sector
2047
Address range
Block
111
Sector
1791
Address range
7FF000h
7FFFFFh
6FF000h
6FFFFFh
2032
2031
7F0000h
7EF000h
7F0FFFh
7EFFFFh
1776
1775
6F0000h
6EF000h
6F0FFFh
6EFFFFh
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
110
109
108
107
106
105
104
103
102
101
100
99
2016
2015
7E0000h
7DF000h
7E0FFFh
7DFFFFh
1760
1759
6E0000h
6DF000h
6E0FFFh
6DFFFFh
2000
1999
7D0000h
7CF000h
7D0FFFh
7CFFFFh
1744
1743
6D0000h
6CF000h
6D0FFFh
6CFFFFh
1984
1983
7C0000h
7BF000h
7C0FFFh
7BFFFFh
1728
1727
6C0000h
6BF000h
6C0FFFh
6BFFFFh
1968
1967
7B0000h
7AF000h
7B0FFFh
7AFFFFh
1712
1711
6B0000h
6AF000h
6B0FFFh
6AFFFFh
1952
1951
7A0000h
79F000h
7A0FFFh
79FFFFh
1696
1695
6A0000h
69F000h
6A0FFFh
69FFFFh
1936
1935
790000h
78F000h
790FFFh
78FFFFh
1680
1679
690000h
68F000h
690FFFh
68FFFFh
1920
1919
780000h
77F000h
780FFFh
77FFFFh
1664
1663
680000h
67F000h
680FFFh
67FFFFh
1904
1903
770000h
76F000h
770FFFh
76FFFFh
1648
1647
670000h
66F000h
670FFFh
66FFFFh
1888
1887
760000h
75F000h
760FFFh
75FFFFh
1632
1631
660000h
65F000h
660FFFh
65FFFFh
1872
1871
750000h
74F000h
750FFFh
74FFFFh
1616
1615
650000h
64F000h
650FFFh
64FFFFh
1856
1855
740000h
73F000h
740FFFh
73FFFFh
1600
1599
640000h
63F000h
640FFFh
63FFFFh
1840
1839
730000h
72F000h
730FFFh
72FFFFh
1584
1583
630000h
62F000h
630FFFh
62FFFFh
98
1824
1823
720000h
71F000h
720FFFh
71FFFFh
1568
1567
620000h
61F000h
620FFFh
61FFFFh
97
1808
1807
710000h
70F000h
710FFFh
70FFFFh
1552
1551
610000h
60F000h
610FFFh
60FFFFh
96
1972
700000h
700FFFh
1536
600000h
600FFFh
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
7
Rev. J, Issue Date: 2011/07/07
EN25Q64
Table 2. Uniform Block Sector Architecture ( 2/4 )
Block
95
Sector
1535
Address range
Block
79
Sector
1279
Address range
5FF000h
5FFFFFh
4FF000h
4FFFFFh
1520
1519
5F0000h
5EF000h
5F0FFFh
5EFFFFh
1264
1263
4F0000h
4EF000h
4F0FFFh
4EFFFFh
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
1504
1503
5E0000h
5DF000h
5E0FFFh
5DFFFFh
1248
1247
4E0000h
4DF000h
4E0FFFh
4DFFFFh
1488
1487
5D0000h
5CF000h
5D0FFFh
5CFFFFh
1232
1231
4D0000h
4CF000h
4D0FFFh
4CFFFFh
1472
1471
5C0000h
5BF000h
5C0FFFh
5BFFFFh
1216
1215
4C0000h
4BF000h
4C0FFFh
4BFFFFh
1456
1455
5B0000h
5AF000h
5B0FFFh
5AFFFFh
1200
1119
4B0000h
4AF000h
4B0FFFh
4AFFFFh
1440
1439
5A0000h
59F000h
5A0FFFh
59FFFFh
1184
183
4A0000h
49F000h
4A0FFFh
49FFFFh
1424
1423
590000h
58F000h
590FFFh
58FFFFh
1168
1167
490000h
48F000h
490FFFh
48FFFFh
1408
1407
580000h
57F000h
580FFFh
57FFFFh
1152
1151
480000h
47F000h
480FFFh
47FFFFh
1392
1391
570000h
56F000h
570FFFh
56FFFFh
1136
1135
470000h
46F000h
470FFFh
46FFFFh
1376
1375
560000h
55F000h
560FFFh
55FFFFh
1120
1119
460000h
45F000h
460FFFh
45FFFFh
1360
1359
550000h
54F000h
550FFFh
54FFFFh
1104
1103
450000h
44F000h
450FFFh
44FFFFh
1344
1343
540000h
53F000h
540FFFh
53FFFFh
1088
1087
440000h
43F000h
440FFFh
43FFFFh
1328
1327
530000h
52F000h
530FFFh
52FFFFh
1072
1071
430000h
42F000h
430FFFh
42FFFFh
1312
1311
520000h
51F000h
520FFFh
51FFFFh
1056
1055
420000h
41F000h
420FFFh
41FFFFh
1296
1295
510000h
50F000h
510FFFh
50FFFFh
1040
1039
410000h
40F000h
410FFFh
40FFFFh
1280
500000h
500FFFh
1024
400000h
400FFFh
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
8
Rev. J, Issue Date: 2011/07/07
EN25Q64
Table 2. Uniform Block Sector Architecture ( 3/4 )
Block
63
Sector
1023
Address range
Block
47
Sector
767
Address range
2FF000h
2FFFFFh
3FF000h
3FFFFFh
1008
1007
3F0000h
3EF000h
3F0FFFh
3EFFFFh
752
751
2F0000h
2EF000h
2F0FFFh
2EFFFFh
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
992
991
3E0000h
3DF000h
3E0FFFh
3DFFFFh
736
735
2E0000h
2DF000h
2E0FFFh
2DFFFFh
976
975
3D0000h
3CF000h
3D0FFFh
3CFFFFh
720
719
2D0000h
2CF000h
2D0FFFh
2CFFFFh
960
959
3C0000h
3BF000h
3C0FFFh
3BFFFFh
704
703
2C0000h
2BF000h
2C0FFFh
2BFFFFh
944
943
3B0000h
3AF000h
3B0FFFh
3AFFFFh
688
687
2B0000h
2AF000h
2B0FFFh
2AFFFFh
928
927
3A0000h
39F000h
3A0FFFh
39FFFFh
672
671
2A0000h
29F000h
2A0FFFh
29FFFFh
912
911
390000h
38F000h
390FFFh
38FFFFh
656
655
290000h
28F000h
290FFFh
28FFFFh
896
895
380000h
37F000h
380FFFh
37FFFFh
640
639
280000h
27F000h
280FFFh
27FFFFh
880
879
370000h
36F000h
370FFFh
36FFFFh
624
623
270000h
26F000h
270FFFh
26FFFFh
864
863
360000h
35F000h
360FFFh
35FFFFh
608
607
260000h
25F000h
260FFFh
25FFFFh
848
847
350000h
34F000h
350FFFh
34FFFFh
592
591
250000h
24F000h
250FFFh
24FFFFh
832
831
340000h
33F000h
340FFFh
33FFFFh
576
575
240000h
23F000h
240FFFh
23FFFFh
816
815
330000h
32F000h
330FFFh
32FFFFh
560
559
230000h
22F000h
230FFFh
22FFFFh
800
799
320000h
31F000h
320FFFh
31FFFFh
544
543
220000h
21F000h
220FFFh
21FFFFh
784
783
310000h
30F000h
310FFFh
30FFFFh
528
527
210000h
20F000h
210FFFh
20FFFFh
768
300000h
300FFFh
512
200000h
200FFFh
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
9
Rev. J, Issue Date: 2011/07/07
EN25Q64
Table 2. Uniform Block Sector Architecture ( 4/4 )
Block
31
Sector
511
Address range
Block
15
Sector
255
Address range
1FF000h
1FFFFFh
0FF000h
0FFFFFh
496
495
1F0000h
1EF000h
1F0FFFh
1EFFFFh
240
239
0F0000h
0EF000h
0F0FFFh
0EFFFFh
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
14
13
12
11
10
9
480
479
1E0000h
1DF000h
1E0FFFh
1DFFFFh
224
223
0E0000h
0DF000h
0E0FFFh
0DFFFFh
464
463
1D0000h
1CF000h
1D0FFFh
1CFFFFh
208
207
0D0000h
0CF000h
0D0FFFh
0CFFFFh
448
447
1C0000h
1BF000h
1C0FFFh
1BFFFFh
192
191
0C0000h
0BF000h
0C0FFFh
0BFFFFh
432
431
1B0000h
1AF000h
1B0FFFh
1AFFFFh
176
175
0B0000h
0AF000h
0B0FFFh
0AFFFFh
416
415
1A0000h
19F000h
1A0FFFh
19FFFF
160
159
0A0000h
09F000h
0A0FFFh
09FFFFh
400
399
190000h
18F000h
190FFFh
18FFFFh
144
143
090000h
08F000h
090FFFh
08FFFFh
8
384
383
180000h
17F000h
180FFFh
17FFFFh
128
127
080000h
07F000h
080FFFh
07FFFFh
7
368
367
170000h
16F000h
170FFFh
16FFFFh
112
111
070000h
06F000h
070FFFh
06FFFFh
6
352
351
160000
15F000
160FFFh
15FFFFh
96
95
060000h
05F000h
060FFFh
05FFFFh
5
336
335
150000h
14F000h
150FFFh
14FFFFh
80
79
050000h
04F000h
050FFFh
04FFFFh
4
320
319
140000h
13F000h
140FFFh
13FFFFh
64
63
040000h
03F000h
040FFFh
03FFFFh
3
304
303
130000h
12F000h
130FFFh
12FFFFh
48
47
030000h
02F000h
030FFFh
02FFFFh
2
288
287
120000h
11F000h
120FFFh
11FFFFh
32
31
020000h
01F000h
020FFFh
01FFFFh
1
272
271
110000h
10F000h
110FFFh
10FFFFh
16
15
010000h
00F000h
010FFFh
00FFFFh
256
100000h
100FFFh
4
3
2
1
0
004000h
003000h
002000h
001000h
000000h
004FFFh
003FFFh
002FFFh
001FFFh
000FFFh
0
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
10
Rev. J, Issue Date: 2011/07/07
EN25Q64
OPERATING FEATURES
Standard SPI Modes
The EN25Q64 is accessed through a SPI compatible bus consisting of four signals: Serial Clock (CLK),
Chip Select (CS#), Serial Data Input (DI) and Serial Data Output (DO). Both SPI bus operation Modes 0
(0,0) and 3 (1,1) are supported. The primary difference between Mode 0 and Mode 3, as shown in
Figure 3, concerns the normal state of the CLK signal when the SPI bus master is in standby and data
is not being transferred to the Serial Flash. For Mode 0 the CLK signal is normally low. For Mode 3 the
CLK signal is normally high. In either case data input on the DI pin is sampled on the rising edge of the
CLK. Data output on the DO pin is clocked out on the falling edge of CLK.
Figure 3. SPI Modes
Dual SPI Instruction
The EN25Q64 supports Dual SPI operation when using the “ Dual Output Fast Read and Dual I/O Fast
Read “ (3Bh and BBh) instructions. These instructions allow data to be transferred to or from the Serial
Flash memory at two to three times the rate possible with the standard SPI. The Dual Read instructions
are ideal for quickly downloading code from Flash to RAM upon power-up (code-shadowing) or for
application that cache code-segments to RAM for execution. The Dual output feature simply allows the
SPI input pin to also serve as an output during this instruction. When using Dual SPI instructions the DI
and DO pins become bidirectional I/O pins; DQ0 and DQ1. All other operations use the standard SPI
interface with single output signal.
Quad SPI Instruction
The EN25Q64 supports Quad output operation when using the Quad I/O Fast Read (EBh).This
instruction allows data to be transferred to or from the Serial Flash memory at four to six times the rate
possible with the standard SPI. The Quad Read instruction offer a significant improvement in
continuous and random access transfer rates allowing fast code-shadowing to RAM or for application
that cache code-segments to RAM for execution. The EN25Q64 also supports full Quad Mode function
while using the Enable Quad Peripheral Interface mode (EQPI) (38h). When using Quad SPI instruction
the DI and DO pins become bidirectional I/O pins; DQ0 and DQ1, and the WP# and NC pins become
DQ2 and DQ3 respectively.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
11
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 4. Quad SPI Modes
Page Programming
To program one data byte, two instructions are required: Write Enable (WREN), which is one byte, and
a Page Program (PP) sequence, which consists of four bytes plus data. This is followed by the internal
Program cycle (of duration tPP).
To spread this overhead, the Page Program (PP) instruction allows up to 256 bytes to be programmed
at a time (changing bits from 1 to 0) provided that they lie in consecutive addresses on the same page
of memory.
Sector Erase, Block Erase and Chip Erase
The Page Program (PP) instruction allows bits to be reset from 1 to 0. Before this can be applied, the
bytes of memory need to have been erased to all 1s (FFh). This can be achieved a sector at a time,
using the Sector Erase (SE) instruction, a block at a time using the Block Erase (BE) instruction or
throughout the entire memory, using the Chip Erase (CE) instruction. This starts an internal Erase cycle
(of duration tSE tBE or tCE). The Erase instruction must be preceded by a Write Enable (WREN)
instruction.
Polling During a Write, Program or Erase Cycle
A further improvement in the time to Write Status Register (WRSR), Program (PP) or Erase (SE, BE or
CE) can be achieved by not waiting for the worst case delay (tW, tPP, tSE, tBE or tCE). The Write In
Progress (WIP) bit is provided in the Status Register so that the application program can monitor its
value, polling it to establish when the previous Write cycle, Program cycle or Erase cycle is complete.
Active Power, Stand-by Power and Deep Power-Down Modes
When Chip Select (CS#) is Low, the device is enabled, and in the Active Power mode. When Chip
Select (CS#) is High, the device is disabled, but could remain in the Active Power mode until all internal
cycles have completed (Program, Erase, Write Status Register). The device then goes into the Stand-
by Power mode. The device consumption drops to ICC1
.
The Deep Power-down mode is entered when the specific instruction (the Enter Deep Power-down
Mode (DP) instruction) is executed. The device consumption drops further to ICC2. The device remains
in this mode until another specific instruction (the Release from Deep Power-down Mode and Read
Device ID (RDI) instruction) is executed.
All other instructions are ignored while the device is in the Deep Power-down mode. This can be used
as an extra software protection mechanism, when the device is not in active use, to protect the device
from inadvertent Write, Program or Erase instructions.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
12
Rev. J, Issue Date: 2011/07/07
EN25Q64
Status Register
The Status Register contain a number of status and control bits that can be read or set (as appropriate)
by specific instructions.
WIP bit. The Write In Progress (WIP) bit indicates whether the memory is busy with a Write Status
Register, Program or Erase cycle.
WEL bit. The Write Enable Latch (WEL) bit indicates the status of the internal Write Enable Latch.
BP3, BP2, BP1, BP0 bits. The Block Protect (BP3, BP2, BP1, BP0) bits are non-volatile. They define
the size of the area to be software protected against Program and Erase instructions.
WPDIS bit. The Write Protect disable (WPDIS) bit, non-volatile bit, when it is reset to “0” (factory
default) to enable WP# function or is set to “1” to disable WP# function (can be floating during SPI
mode.)
SRP bit / OTP_LOCK bit The Status Register Protect (SRP) bit operates in conjunction with the Write
Protect (WP#) signal. The Status Register Protect (SRP) bit and Write Protect (WP#) signal allow the
device to be put in the Hardware Protected mode. In this mode, the non-volatile bits of the Status
Register (SRP, BP3, BP2, BP1, BP0) become read-only bits.
In OTP mode, this bit serves as OTP_LOCK bit, user can read/program/erase OTP sector as normal
sector while OTP_LOCK bit value is equal 0, after OTP_LOCK bit is programmed with 1 by WRSR
command, the OTP sector is protected from program and erase operation. The OTP_LOCK bit can only
be programmed once.
Note : In OTP mode, the WRSR command will ignore any input data and program OTP_LOCK bit to 1,
user must clear the protect bits before entering OTP mode and program the OTP code, then execute
WRSR command to lock the OTP sector before leaving OTP mode.
Write Protection
Applications that use non-volatile memory must take into consideration the possibility of noise and other
adverse system conditions that may compromise data integrity. To address this concern the EN25Q64
provides the following data protection mechanisms:
z
Power-On Reset and an internal timer (t ) can provide protection against inadvertent changes
PUW
while the power supply is outside the operating specification.
z
z
Program, Erase and Write Status Register instructions are checked that they consist of a number
of clock pulses that is a multiple of eight, before they are accepted for execution.
All instructions that modify data must be preceded by a Write Enable (WREN) instruction to set
the Write Enable Latch (WEL) bit. This bit is returned to its reset state by the following events:
– Power-up
–
Write Disable (WRDI) instruction completion or Write Status Register (WRSR) instruction
completion or Page Program (PP) instruction completion or Sector Erase (SE) instruction
completion or Block Erase (BE) instruction completion or Chip Erase (CE) instruction
completion
z
z
z
The Block Protect (BP3, BP2, BP1, BP0) bits allow part of the memory to be configured as read-
only. This is the Software Protected Mode (SPM).
The Write Protect (WP#) signal allows the Block Protect (BP3, BP2, BP1, BP0) bits and Status
Register Protect (SRP) bit to be protected. This is the Hardware Protected Mode (HPM).
In addition to the low power consumption feature, the Deep Power-down mode offers extra
software protection from inadvertent Write, Program and Erase instructions, as all instructions are
ignored except one particular instruction (the Release from Deep Power-down instruction).
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
13
Rev. J, Issue Date: 2011/07/07
EN25Q64
Table 3. Protected Area Sizes Sector Organization
Status Register Content
Memory Content
BP3 BP2 BP1 BP0
Protect Areas
Addresses
None
000000h-7EFFFFh 8128KB
000000h-7DFFFFh 8064KB
000000h-7BFFFFh 7936KB
000000h-77FFFFh
000000h-6FFFFFh
000000h-5FFFFFh
000000h-7FFFFFh
None
7FFFFFh-010000h
7FFFFFh-020000h
7FFFFFh-040000h
7FFFFFh-080000h
Density(KB)
None
Portion
Bit
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Bit
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Bit
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Bit
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
None
None
Block 0 to 126
Block 0 to 125
Block 0 to 123
Block 0 to 119
Block 0 to 111
Block 0 to 95
All
Lower 127/128
Lower 126/128
Lower 124/128
Lower 120/128
Lower 112/128
Lower 96/128
All
7680KB
7168KB
6144KB
8192KB
None
8128KB
8064KB
7936KB
7680KB
7168KB
6144KB
8192KB
None
None
Block 127 to 1
Block 127 to 2
Block 127 to 4
Block 127 to 8
Block 127 to 16 7FFFFFh-100000h
Block 127 to 32 7FFFFFh-200000h
Upper 127/128
Upper 126/128
Upper 124/128
Upper 120/128
Upper 112/128
Upper 96/128
All
All
7FFFFFh-000000h
INSTRUCTIONS
All instructions, addresses and data are shifted in and out of the device, most significant bit first. Serial
Data Input (DI) is sampled on the first rising edge of Serial Clock (CLK) after Chip Select (CS#) is
driven Low. Then, the one-byte instruction code must be shifted in to the device, most significant bit first,
on Serial Data Input (DI), each bit being latched on the rising edges of Serial Clock (CLK).
The instruction set is listed in Table 4. Every instruction sequence starts with a one-byte instruction
code. Depending on the instruction, this might be followed by address bytes, or by data bytes, or by
both or none. Chip Select (CS#) must be driven High after the last bit of the instruction sequence has
been shifted in. In the case of a Read Data Bytes (READ), Read Data Bytes at Higher Speed
(Fast_Read), Dual Output Fast Read (3Bh), Dual I/O Fast Read (BBh), Quad Input/Output
FAST_READ (EBh), Read Status Register (RDSR) or Release from Deep Power-down, and Read
Device ID (RDI) instruction, the shifted-in instruction sequence is followed by a data-out sequence.
Chip Select (CS#) can be driven High after any bit of the data-out sequence is being shifted out.
In the case of a Page Program (PP), Sector Erase (SE), Block Erase (BE), Chip Erase (CE), Write
Status Register (WRSR), Write Enable (WREN), Write Disable (WRDI) or Deep Power-down (DP)
instruction, Chip Select (CS#) must be driven High exactly at a byte boundary, otherwise the instruction
is rejected, and is not executed. That is, Chip Select (CS#) must driven High when the number of clock
pulses after Chip Select (CS#) being driven Low is an exact multiple of eight. For Page Program, if at
any time the input byte is not a full byte, nothing will happen and WEL will not be reset.
In the case of multi-byte commands of Page Program (PP), and Release from Deep Power Down
(RES ) minimum number of bytes specified has to be given, without which, the command will be
ignored.
In the case of Page Program, if the number of byte after the command is less than 4 (at least 1
data byte), it will be ignored too. In the case of SE and BE, exact 24-bit address is a must, any
less or more will cause the command to be ignored.
All attempts to access the memory array during a Write Status Register cycle, Program cycle or Erase
cycle are ignored, and the internal Write Status Register cycle, Program cycle or Erase cycle continues
unaffected.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
14
Rev. J, Issue Date: 2011/07/07
EN25Q64
Table 4A. Instruction Set
Instruction Name
Byte 1
Code
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
n-Bytes
EQPI
38h
FFh
06h
66h
99h
(2)
RSTQIO
Write Enable
RSTEN
(1)
RST
Write Disable / Exit
OTP mode
Read Status
Register
Write Status
Register
04h
05h
(3)
(S7-S0)
S7-S0
(4)
continuous
01h
02h
20h
A23-A16
A23-A16
A23-A16
A15-A8
A15-A8
A15-A8
A7-A0
A7-A0
A7-A0
D7-D0
Next byte continuous
Page Program
Sector Erase / OTP
erase
Block Erase
D8h
Chip Erase
C7h/ 60h
B9h
Deep Power-down
(5)
Release from Deep
Power-down, and
read Device ID
Release from Deep
Power-down
dummy
dummy
dummy
(ID7-ID0)
ABh
(6)
00h
01h
(M7-M0)
(ID7-ID0)
(ID7-ID0)
(M7-M0)
Manufacturer/
Device ID
dummy
dummy
90h
(ID15-ID8)
(ID7-ID0) (7)
(M7-M0)
Read Identification
Enter OTP mode
9Fh
3Ah
Notes:
1. RST command only executed if RSTEN command is executed first. Any intervening command will disable Reset.
2. Device accepts eight-clocks command in Standard SPI mode, or two-clocks command in Quad SPI mode
3. Data bytes are shifted with Most Significant Bit first. Byte fields with data in parenthesis “( )” indicate data being read from the
device on the DO pin
4. The Status Register contents will repeat continuously until CS# terminate the instruction
5. The Device ID will repeat continuously until CS# terminates the instruction
6. The Manufacturer ID and Device ID bytes will repeat continuously until CS# terminates the instruction.
00h on Byte 4 starts with MID and alternate with DID, 01h on Byte 4 starts with DID and alternate with MID
7. (M7-M0) : Manufacturer, (ID15-ID8) : Memory Type, (ID7-ID0) : Memory Capacity
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
15
Rev. J, Issue Date: 2011/07/07
EN25Q64
Table 4B. Instruction Set (Read Instruction)
Instruction Name Byte 1 Byte 2
Code
Byte 3
Byte 4
Byte 5
Byte 6
n-Bytes
Read Data
Fast Read
A23-A16
A23-A16
A15-A8
A15-A8
A7-A0
A7-A0
(D7-D0)
dummy
(Next byte)
(D7-D0)
continuous
03h
0Bh
(Next Byte)
continuous
(one byte
per 4 clocks,
continuous)
(one byte
per 4 clocks,
continuous)
(one byte
per 2 clocks,
continuous)
Dual Output Fast
Read
(1)
A23-A16
A15-A8
A7-A0
dummy
3Bh
BBh
EBh
(D7-D0, …)
A7-A0,
dummy
(2)
(1)
(3)
Dual I/O Fast Read
Quad I/O Fast Read
A23-A8
(D7-D0, …)
(D7-D0, …)
(2)
A23-A0,
dummy
(dummy,
(5)
(4)
D7-D0 )
Notes:
1. Dual Output data
DQ0 = (D6, D4, D2, D0)
DQ1 = (D7, D5, D3, D1)
2. Dual Input Address
DQ0 = A22, A20, A18, A16, A14, A12, A10, A8 ; A6, A4, A2, A0, dummy 6, dummy 4, dummy 2, dummy 0
DQ1 = A23, A21, A19, A17, A15, A13, A11, A9 ; A7, A5, A3, A1, dummy 7, dummy 5, dummy 3, dummy 1
3. Quad Data
DQ0 = (D4, D0, …… )
DQ1 = (D5, D1, …… )
DQ2 = (D6, D2, …... )
DQ3 = (D7, D3, …... )
4. Quad Input Address
DQ0 = A20, A16, A12, A8, A4, A0, dummy 4, dummy 0
DQ1 = A21, A17, A13, A9, A5, A1, dummy 5, dummy 1
DQ2 = A22, A18, A14, A10, A6, A2, dummy 6, dummy 2
DQ3 = A23, A19, A15, A11, A7, A3, dummy 7, dummy 3
5. Quad I/O Fast Read Data
DQ0 = ( dummy 12, dummy 8, dummy 4, dummy 0, D4, D0 )
DQ1 = ( dummy 13, dummy 9, dummy 5, dummy 1, D5, D1 )
DQ2 = ( dummy 14, dummy 10, dummy 6, dummy 2, D6, D2 )
DQ3 = ( dummy 15, dummy 11, dummy 7, dummy 3, D7, D3 )
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
16
Rev. J, Issue Date: 2011/07/07
EN25Q64
Table 5. Manufacturer and Device Identification
OP Code
ABh
(M7-M0)
(ID15-ID0)
(ID7-ID0)
16h
90h
1Ch
1Ch
16h
9Fh
3017h
Enable Quad Peripheral Interface mode (EQPI) (38h)
The Enable Quad Peripheral Interface mode (EQPI) instruction will enable the flash device for Quad
SPI bus operation. Upon completion of the instruction, all instructions thereafter will be 4-bit multiplexed
input/output until a power cycle or “ Reset Quad I/O instruction “ instruction, as shown in Figure 5. The
device did not support the Read Data Bytes (READ) (03h), Dual Output Fast Read (3Bh) and Dual
Input/Output FAST_READ (BBh) modes while the Enable Quad Peripheral Interface mode (EQPI) (38h)
turns on.
Figure 5. Enable Quad Peripheral Interface mode Sequence Diagram
Reset Quad I/O (RSTQIO) (FFh)
The Reset Quad I/O instruction resets the device to 1-bit Standard SPI operation. To execute a Reset
Quad I/O operation, the host drives CS# low, sends the Reset Quad I/O command cycle (FFh) then,
drives CS# high. This command can’t be used in Standard SPI mode.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
17
Rev. J, Issue Date: 2011/07/07
EN25Q64
Reset-Enable (RSTEN) (66h) and Reset (RST) (99h)
The Reset operation is used as a system (software) reset that puts the device in normal operating
Ready mode. This operation consists of two commands: Reset-Enable (RSTEN) and Reset (RST).
To reset the EN25Q64 the host drives CS# low, sends the Reset-Enable command (66h), and drives
CS# high. Next, the host drives CS# low again, sends the Reset command (99h), and drives CS# high.
The Reset operation requires the Reset-Enable command followed by the Reset command. Any
command other than the Reset command after the Reset-Enable command will disable the Reset-
Enable.
A successful command execution will reset the Status register to data = 00h, see Figure 6 for SPI Mode
and Figure 6.1 for Quad Mode. A device reset during an active Program or Erase operation aborts the
operation, which can cause the data of the targeted address range to be corrupted or lost. Depending
on the prior operation, the reset timing may vary. Recovery from a Write operation requires more
software latency time ( tSR) than recovery from other operations.
Figure 6. Reset-Enable and Reset Sequence Diagram
Figure 6.1 . Reset-Enable and Reset Sequence Diagram under EQPI Mode
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
18
Rev. J, Issue Date: 2011/07/07
EN25Q64
Software Reset Flow
Initial
No
Command
= 66h ?
Yes
Reset enable
No
Command
= 99h ?
Yes
Reset start
No
Embedded
Reset Cycle
WIP = 0 ?
Yes
Reset done
Note:
1. Reset-Enable (RSTEN) (66h) and Reset (RST) (99h) commands need to match standard SPI or
EQPI (quad) mode.
2. Continue (Enhance) EB mode need to use quad Reset-Enable (RSTEN) (66h) and quad Reset (RST)
(99h) commands.
3. If user is not sure it is in SPI or Quad mode, we suggest to execute sequence as follows:
Quad Reset-Enable (RSTEN) (66h) -> Quad Reset (RST) (99h) -> SPI Reset-Enable (RSTEN) (66h)
-> SPI Reset (RST) (99h) to reset.
4. The reset command could be executed during embedded program and erase process, EQPI mode
and Continue EB mode to back to SPI mode.
5. This flow cannot release the device from Deep power down mode.
6. The Status Register Bit will reset to default value after reset done.
7. If user reset device during erase, the embedded reset cycle software reset latency will take about
28us in worst case.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
19
Rev. J, Issue Date: 2011/07/07
EN25Q64
Write Enable (WREN) (06h)
The Write Enable (WREN) instruction (Figure 7) sets the Write Enable Latch (WEL) bit. The Write
Enable Latch (WEL) bit must be set prior to every Page Program (PP), Sector Erase (SE), Block Erase
(BE), Chip Erase (CE) and Write Status Register (WRSR) instruction.
The Write Enable (WREN) instruction is entered by driving Chip Select (CS#) Low, sending the
instruction code, and then driving Chip Select (CS#) High.
The instruction sequence is shown in Figure 8.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
Figure 7. Write Enable Instruction Sequence Diagram
Write Disable (WRDI) (04h)
The Write Disable instruction (Figure 8) resets the Write Enable Latch (WEL) bit in the Status Register
to a 0 or exit from OTP mode to normal mode. The Write Disable instruction is entered by driving Chip
Select (CS#) low, shifting the instruction code “04h” into the DI pin and then driving Chip Select (CS#)
high. Note that the WEL bit is automatically reset after Power-up and upon completion of the Write
Status Register, Page Program, Sector Erase, Block Erase (BE) and Chip Erase instructions.
The instruction sequence is shown in Figure 8.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
Figure 8. Write Disable Instruction Sequence Diagram
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
20
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 8.1 Write Enable/Disable Instruction Sequence under EQPI Mode
Read Status Register (RDSR) (05h)
The Read Status Register (RDSR) instruction allows the Status Register to be read. The Status
Register may be read at any time, even while a Program, Erase or Write Status Register cycle is in
progress. When one of these cycles is in progress, it is recommended to check the Write In Progress
(WIP) bit before sending a new instruction to the device. It is also possible to read the Status Register
continuously, as shown in Figure 9.
The instruction sequence is shown in Figure 9.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
Figure 9. Read Status Register Instruction Sequence Diagram
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
21
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 9.1 Read Status Register Instruction Sequence under EQPI Mode
Table 6. Status Register Bit Locations
S7
S6
S5
S4
S3
S2
S1
S0
SRP
Status
Register
Protect
WIP
(Write In
Progress bit)
(Note 3)
OTP_LOCK
BP3
BP2
BP1
BP0
WEL
(Write Enable
Latch)
WPDIS
(WP# disable)
bit
(Block
(Block
(Block
(Block
Protected bits) Protected bits) Protected bits) Protected bits)
(note 1)
1 = WP#
disable
0 = WP#
enable
1 = write
enable
0 = not write 0 = not in write
1 = write
operation
1 = status
register write sector is
disable protected
1 = OTP
(note 2)
(note 2)
(note 2)
(note 2)
enable
operation
Non-volatile bit
Non-volatile bit Non-volatile bit. Non-volatile bit Non-volatile bit Non-volatile bit
volatile bit
volatile bit
Note
1. In OTP mode, SRP bit is served as OTP_LOCK bit.
2. See the table “Protected Area Sizes Sector Organization”.
The status and control bits of the Status Register are as follows:
WIP bit. The Write In Progress (WIP) bit indicates whether the memory is busy with a Write Status
Register, Program or Erase cycle. When set to 1, such a cycle is in progress, when reset to 0 no such
cycle is in progress.
WEL bit. The Write Enable Latch (WEL) bit indicates the status of the internal Write Enable Latch.
When set to 1 the internal Write Enable Latch is set, when set to 0 the internal Write Enable Latch is
reset and no Write Status Register, Program or Erase instruction is accepted.
BP3, BP2, BP1, BP0 bits. The Block Protect (BP3, BP2, BP1, BP0) bits are non-volatile. They define
the size of the area to be software protected against Program and Erase instructions. These bits are
written with the Write Status Register (WRSR) instruction. When one or both of the Block Protect (BP3,
BP2, BP1, BP0) bits is set to 1, the relevant memory area (as defined in Table 3.) becomes protected
against Page Program (PP) Sector Erase (SE) and , Block Erase (BE), instructions. The Block Protect
(BP3, BP2, BP1, BP0) bits can be written provided that the Hardware Protected mode has not been set.
The Chip Erase (CE) instruction is executed if, and only if, all Block Protect (BP3, BP2, BP1, BP0) bits
are 0.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
22
Rev. J, Issue Date: 2011/07/07
EN25Q64
WPDIS bit. The Write Protect disable (WPDIS) bit, non-volatile bit, when it is reset to “0” (factory
default) to enable WP# function or is set to “1” to disable WP# function (can be floating during SPI
mode.)
SRP bit / OTP_LOCK bit. The Status Register Protect (SRP) bit operates in conjunction with the Write
Protect (WP#) signal. The Status Register Write Protect (SRP) bit and Write Protect (WP#) signal allow
the device to be put in the Hardware Protected mode (when the Status Register Protect (SRP) bit is set
to 1, and Write Protect (WP#) is driven Low). In this mode, the non-volatile bits of the Status Register
(SRP, BP3, BP2, BP1, BP0) become read-only bits and the Write Status Register (WRSR) instruction is
no longer accepted for execution.
In OTP mode, this bit serves as OTP_LOCK bit, user can read/program/erase OTP sector as normal
sector while OTP_LOCK bit value is equal 0, after OTP_LOCK bit is programmed with 1 by WRSR
command, the OTP sector is protected from program and erase operation. The OTP_LOCK bit can only
be programmed once.
Note : In OTP mode, the WRSR command will ignore any input data and program OTP_LOCK bit to 1,
user must clear the protect bits before enter OTP mode and program the OTP code, then execute
WRSR command to lock the OTP sector before leaving OTP mode.
Write Status Register (WRSR) (01h)
The Write Status Register (WRSR) instruction allows new values to be written to the Status Register.
Before it can be accepted, a Write Enable (WREN) instruction must previously have been executed.
After the Write Enable (WREN) instruction has been decoded and executed, the device sets the Write
Enable Latch (WEL).
The Write Status Register (WRSR) instruction is entered by driving Chip Select (CS#) Low, followed by
the instruction code and the data byte on Serial Data Input (DI).
The instruction sequence is shown in Figure 10. The Write Status Register (WRSR) instruction has no
effect on S1 and S0 of the Status Register. Chip Select (CS#) must be driven High after the eighth bit of
the data byte has been latched in. If not, the Write Status Register (WRSR) instruction is not executed.
As soon as Chip Select (CS#) is driven High, the self-timed Write Status Register cycle (whose
duration is tW) is initiated. While the Write Status Register cycle is in progress, the Status Register may
still be read to check the value of the Write In Progress (WIP) bit. The Write In Progress (WIP) bit is 1
during the self-timed Write Status Register cycle, and is 0 when it is completed. When the cycle is
completed, the Write Enable Latch (WEL) is reset.
The Write Status Register (WRSR) instruction allows the user to change the values of the Block Protect
(BP3, BP2, BP1, BP0) bits, to define the size of the area that is to be treated as read-only, as defined in
Table 3. The Write Status Register (WRSR) instruction also allows the user to set or reset the Status
Register Protect (SRP) bit in accordance with the Write Protect (WP#) signal. The Status Register
Protect (SRP) bit and Write Protect (WP#) signal allow the device to be put in the Hardware Protected
Mode (HPM). The Write Status Register (WRSR) instruction is not executed once the Hardware
Protected Mode (HPM) is entered.
The instruction sequence is shown in Figure 10.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
NOTE : In the OTP mode, WRSR command will ignore input data and program OTP_LOCK bit to 1.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
23
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 10. Write Status Register Instruction Sequence Diagram
Figure 10.1 Write Status Register Instruction Sequence under EQPI Mode
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
24
Rev. J, Issue Date: 2011/07/07
EN25Q64
Read Data Bytes (READ) (03h)
The device is first selected by driving Chip Select (CS#) Low. The instruction code for the Read Data
Bytes (READ) instruction is followed by a 3-byte address (A23-A0), each bit being latched-in during the
rising edge of Serial Clock (CLK). Then the memory contents, at that address, is shifted out on Serial
Data Output (DO), each bit being shifted out, at a maximum frequency f , during the falling edge of
R
Serial Clock (CLK).
The instruction sequence is shown in Figure 11. The first byte addressed can be at any location. The
address is automatically incremented to the next higher address after each byte of data is shifted out.
The whole memory can, therefore, be read with a single Read Data Bytes (READ) instruction. When
the highest address is reached, the address counter rolls over to 000000h, allowing the read sequence
to be continued indefinitely.
The Read Data Bytes (READ) instruction is terminated by driving Chip Select (CS#) High. Chip Select
(CS#) can be driven High at any time during data output. Any Read Data Bytes (READ) instruction,
while an Erase, Program or Write cycle is in progress, is rejected without having any effects on the
cycle that is in progress.
Figure 11. Read Data Instruction Sequence Diagram
Read Data Bytes at Higher Speed (FAST_READ) (0Bh)
The device is first selected by driving Chip Select (CS#) Low. The instruction code for the Read Data
Bytes at Higher Speed (FAST_READ) instruction is followed by a 3-byte address (A23-A0) and a
dummy byte, each bit being latched-in during the rising edge of Serial Clock (CLK). Then the memory
contents, at that address, is shifted out on Serial Data Output (DO), each bit being shifted out, at a
maximum frequency F , during the falling edge of Serial Clock (CLK).
R
The instruction sequence is shown in Figure 12. The first byte addressed can be at any location. The
address is automatically incremented to the next higher address after each byte of data is shifted out.
The whole memory can, therefore, be read with a single Read Data Bytes at Higher Speed
(FAST_READ) instruction. When the highest address is reached, the address counter rolls over to
000000h, allowing the read sequence to be continued indefinitely.
The Read Data Bytes at Higher Speed (FAST_READ) instruction is terminated by driving Chip Select
(CS#) High. Chip Select (CS#) can be driven High at any time during data output. Any Read Data Bytes
at Higher Speed (FAST_READ) instruction, while an Erase, Program or Write cycle is in progress, is
rejected without having any effects on the cycle that is in progress.
The instruction sequence is shown in Figure 12.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
25
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 12. Fast Read Instruction Sequence Diagram
Figure 12.1 Fast Read Instruction Sequence under EQPI Mode
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
26
Rev. J, Issue Date: 2011/07/07
EN25Q64
Dual Output Fast Read (3Bh)
The Dual Output Fast Read (3Bh) is similar to the standard Fast Read (0Bh) instruction except that
data is output on two pins, DQ0 and DQ1, instead of just DQ0. This allows data to be transferred from
the EN25Q64 at twice the rate of standard SPI devices. The Dual Output Fast Read instruction is ideal
for quickly downloading code from to RAM upon power-up or for applications that cache code-
segments to RAM for execution.
Similar to the Fast Read instruction, the Dual Output Fast Read instruction can operation at the highest
possible frequency of FR (see AC Electrical Characteristics). This is accomplished by adding eight
“dummy clocks after the 24-bit address as shown in Figure 13. The dummy clocks allow the device’s
internal circuits additional time for setting up the initial address. The input data during the dummy clock
is “don’t care”. However, the DI pin should be high-impedance prior to the falling edge of the first data
out clock.
Figure 13. Dual Output Fast Read Instruction Sequence Diagram
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
27
Rev. J, Issue Date: 2011/07/07
EN25Q64
Dual Input / Output FAST_READ (BBh)
The Dual I/O Fast Read (BBh) instruction allows for improved random access while maintaining two IO
pins, DQ0 and DQ1. It is similar to the Dual Output Fast Read (3Bh) instruction but with the capability to
input the Address bits (A23-0) two bits per clock. This reduced instruction overhead may allow for code
execution (XIP) directly from the Dual SPI in some applications.
The Dual I/O Fast Read instruction enable double throughput of Serial Flash in read mode. The
address is latched on rising edge of CLK, and data of every two bits (interleave 2 I/O pins) shift out on
the falling edge of CLK at a maximum frequency. The first address can be at any location. The address
is automatically increased to the next higher address after each byte data is shifted out, so the whole
memory can be read out at a single Dual I/O Fast Read instruction. The address counter rolls over to 0
when the highest address has been reached. Once writing Dual I/O Fast Read instruction, the following
address/dummy/data out will perform as 2-bit instead of previous 1-bit, as shown in Figure 14.
Figure 14. Dual Input / Output Fast Read Instruction Sequence Diagram
“Quad Input / Output FAST_READ (EBh)
The Quad Input/Output FAST_READ (EBh) instruction is similar to the Dual I/O Fast Read (BBh)
instruction except that address and data bits are input and output through four pins, DQ0, DQ1, DQ2 and
DQ3 and six Dummy clocks are required prior to the data output. The Quad I/O dramatically reduces
instruction overhead allowing faster random access for code execution (XIP) directly from the Quad SPI.
The Quad Input/Output FAST_READ (EBh) instruction enable quad throughput of Serial Flash in read
mode. The address is latching on rising edge of CLK, and data of every four bits (interleave on 4 I/O
pins) shift out on the falling edge of CLK at a maximum frequency FR. The first address can be any
location. The address is automatically increased to the next higher address after each byte data is
shifted out, so the whole memory can be read out at a single Quad Input/Output FAST_READ
instruction. The address counter rolls over to 0 when the highest address has been reached. Once
writing Quad Input/Output FAST_READ instruction, the following address/dummy/data out will perform
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
28
Rev. J, Issue Date: 2011/07/07
EN25Q64
as 4-bit instead of previous 1-bit.
The sequence of issuing Quad Input/Output FAST_READ (EBh) instruction is: CS# goes low ->
sending Quad Input/Output FAST_READ (EBh) instruction -> 24-bit address interleave on DQ3, DQ2,
DQ1 and DQ0 -> 6 dummy clocks -> data out interleave on DQ3, DQ2, DQ1 and DQ0 -> to end Quad
Input/Output FAST_READ (EBh) operation can use CS# to high at any time during data out, as shown
in Figure 15.
The instruction sequence is shown in Figure 15.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
Figure 15. Quad Input / Output Fast Read Instruction Sequence Diagram
Figure 15.1. Quad Input / Output Fast Read Instruction Sequence under EQPI Mode
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
29
Rev. J, Issue Date: 2011/07/07
EN25Q64
Another sequence of issuing Quad Input/Output FAST_READ (EBh) instruction especially useful in
random access is : CS# goes low -> sending Quad Input/Output FAST_READ (EBh) instruction -> 24-
bit address interleave on DQ3, DQ2, DQ1 and DQ0 -> performance enhance toggling bit P[7:0] -> 4
dummy clocks -> data out interleave on DQ3, DQ2, DQ1 and DQ0 till CS# goes high -> CS# goes low
(reduce Quad Input/Output FAST_READ (EBh) instruction) -> 24-bit random access address, as shown
in Figure 16.
In the performance – enhancing mode, P[7:4] must be toggling with P[3:0] ; likewise P[7:0] = A5h, 5Ah,
F0h or 0Fh can make this mode continue and reduce the next Quad Input/Output FAST_READ (EBh)
instruction. Once P[7:4] is no longer toggling with P[3:0] ; likewise P[7:0] = FFh, 00h, AAh or 55h. And
afterwards CS# is raised, the system then will escape from performance enhance mode and return to
normal operation.
While Program/ Erase/ Write Status Register is in progress, Quad Input/Output FAST_READ (EBh)
instruction is rejected without impact on the Program/ Erase/ Write Status Register current cycle.
The instruction sequence is shown in Figure 16.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
30
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 16. Quad Input/Output Fast Read Enhance Performance Mode Sequence Diagram
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
31
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 16.1 Quad Input/Output Fast Read Enhance Performance Mode Sequence under EQPI Mode
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
32
Rev. J, Issue Date: 2011/07/07
EN25Q64
Page Program (PP) (02h)
The Page Program (PP) instruction allows bytes to be programmed in the memory. Before it can be
accepted, a Write Enable (WREN) instruction must previously have been executed. After the Write
Enable (WREN) instruction has been decoded, the device sets the Write Enable Latch (WEL).
The Page Program (PP) instruction is entered by driving Chip Select (CS#) Low, followed by the in-
struction code, three address bytes and at least one data byte on Serial Data Input (DI). If the 8 least
significant address bits (A7-A0) are not all zero, all transmitted data that goes beyond the end of the
current page are programmed from the start address of the same page (from the address whose 8
least significant bits (A7-A0) are all zero). Chip Select (CS#) must be driven Low for the entire duration
of the sequence.
The instruction sequence is shown in Figure 17. If more than 256 bytes are sent to the device, pre-
viously latched data are discarded and the last 256 data bytes are guaranteed to be programmed cor-
rectly within the same page. If less than 256 Data bytes are sent to device, they are correctly pro-
grammed at the requested addresses without having any effects on the other bytes of the same page.
Chip Select (CS#) must be driven High after the eighth bit of the last data byte has been latched in,
otherwise the Page Program (PP) instruction is not executed.
As soon as Chip Select (CS#) is driven High, the self-timed Page Program cycle (whose duration is t
)
PP
is initiated. While the Page Program cycle is in progress, the Status Register may be read to check the
value of the Write In Progress (WIP) bit. The Write In Progress (WIP) bit is 1 during the self-timed Page
Program cycle, and is 0 when it is completed. At some unspecified time before the cycle is completed,
the Write Enable Latch (WEL) bit is reset.
A Page Program (PP) instruction applied to a page which is protected by the Block Protect (BP3, BP2,
BP1, BP0) bits (see Table 3) is not executed.
The instruction sequence is shown in Figure 17.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
Figure 17. Page Program Instruction Sequence Diagram
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
33
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 17.1 Program Instruction Sequence under EQPI Mode
Sector Erase (SE) (20h)
The Sector Erase (SE) instruction sets to 1 (FFh) all bits inside the chosen sector. Before it can be
accepted, a Write Enable (WREN) instruction must previously have been executed. After the Write
Enable (WREN) instruction has been decoded, the device sets the Write Enable Latch (WEL).
The Sector Erase (SE) instruction is entered by driving Chip Select (CS#) Low, followed by the in-
struction code, and three address bytes on Serial Data Input (DI). Any address inside the Sector (see
Table 2) is a valid address for the Sector Erase (SE) instruction. Chip Select (CS#) must be driven Low
for the entire duration of the sequence.
The instruction sequence is shown in Figure 18. Chip Select (CS#) must be driven High after the eighth
bit of the last address byte has been latched in, otherwise the Sector Erase (SE) instruction is not
executed. As soon as Chip Select (CS#) is driven High, the self-timed Sector Erase cycle (whose du-
ration is t ) is initiated. While the Sector Erase cycle is in progress, the Status Register may be read
SE
to check the value of the Write In Progress (WIP) bit. The Write In Progress (WIP) bit is 1 during the
self-timed Sector Erase cycle, and is 0 when it is completed. At some unspecified time before the cycle
is completed, the Write Enable Latch (WEL) bit is reset.
A Sector Erase (SE) instruction applied to a sector which is protected by the Block Protect (BP3, BP2,
BP1, BP0) bits (see Table 3) is not executed.
The instruction sequence is shown in Figure 19.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
34
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 18. Sector Erase Instruction Sequence Diagram
Block Erase (BE) (D8h)
The Block Erase (BE) instruction sets to 1 (FFh) all bits inside the chosen block. Before it can be
accepted, a Write Enable (WREN) instruction must previously have been executed. After the Write
Enable (WREN) instruction has been decoded, the device sets the Write Enable Latch (WEL).
The Block Erase (BE) instruction is entered by driving Chip Select (CS#) Low, followed by the in-
struction code, and three address bytes on Serial Data Input (DI). Any address inside the Block (see
Table 2) is a valid address for the Block Erase (BE) instruction. Chip Select (CS#) must be driven Low
for the entire duration of the sequence.
The instruction sequence is shown in Figure 19. Chip Select (CS#) must be driven High after the eighth
bit of the last address byte has been latched in, otherwise the Block Erase (BE) instruction is not
executed. As soon as Chip Select (CS#) is driven High, the self-timed Block Erase cycle (whose du-
ration is t ) is initiated. While the Block Erase cycle is in progress, the Status Register may be read to
BE
check the value of the Write In Progress (WIP) bit. The Write In Progress (WIP) bit is 1 during the self-
timed Block Erase cycle, and is 0 when it is completed. At some unspecified time before the cycle is
completed, the Write Enable Latch (WEL) bit is reset.
A Block Erase (BE) instruction applied to a block which is protected by the Block Protect (BP3, BP2,
BP1, BP0) bits (see Table 3) is not executed.
The instruction sequence is shown in Figure 19.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
35
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 19. Block Erase Instruction Sequence Diagram
Figure 19.1 Block/Sector Erase Instruction Sequence under EQPI Mode
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
36
Rev. J, Issue Date: 2011/07/07
EN25Q64
Chip Erase (CE) (C7h/60h)
The Chip Erase (CE) instruction sets all bits to 1 (FFh). Before it can be accepted, a Write Enable
(WREN) instruction must previously have been executed. After the Write Enable (WREN) instruction
has been decoded, the device sets the Write Enable Latch (WEL).
The Chip Erase (CE) instruction is entered by driving Chip Select (CS#) Low, followed by the instruction
code on Serial Data Input (DI). Chip Select (CS#) must be driven Low for the entire duration of the
sequence.
The instruction sequence is shown in Figure 20. Chip Select (CS#) must be driven High after the eighth
bit of the instruction code has been latched in, otherwise the Chip Erase instruction is not executed. As
soon as Chip Select (CS#) is driven High, the self-timed Chip Erase cycle (whose duration is t ) is
CE
initiated. While the Chip Erase cycle is in progress, the Status Register may be read to check the value
of the Write In Progress (WIP) bit. The Write In Progress (WIP) bit is 1 during the self-timed Chip Erase
cycle, and is 0 when it is completed. At some unspecified time before the cycle is completed, the Write
Enable Latch (WEL) bit is reset.
The Chip Erase (CE) instruction is executed only if all Block Protect (BP3, BP2, BP1, BP0) bits are 0.
The Chip Erase (CE) instruction is ignored if one, or more blocks are protected.
The instruction sequence is shown in Figure 20.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
Figure 20. Chip Erase Instruction Sequence Diagram
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
37
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 20.1 Chip Erase Sequence under EQPI Mode
Deep Power-down (DP) (B9h)
Executing the Deep Power-down (DP) instruction is the only way to put the device in the lowest con-
sumption mode (the Deep Power-down mode). It can also be used as an extra software protection
mechanism, while the device is not in active use, since in this mode, the device ignores all Write,
Program and Erase instructions.
Driving Chip Select (CS#) High deselects the device, and puts the device in the Standby mode (if there
is no internal cycle currently in progress). But this mode is not the Deep Power-down mode. The Deep
Power-down mode can only be entered by executing the Deep Power-down (DP) instruction, to reduce
the standby current (from ICC1 to ICC2, as specified in Table 9.)
Once the device has entered the Deep Power-down mode, all instructions are ignored except the
Release from Deep Power-down and Read Device ID (RDI) instruction. This releases the device from
this mode. The Release from Deep Power-down and Read Device ID (RDI) instruction also allows the
Device ID of the device to be output on Serial Data Output (DO).
The Deep Power-down mode automatically stops at Power-down, and the device always Powers-up in
the Standby mode. The Deep Power-down (DP) instruction is entered by driving Chip Select (CS#) Low,
followed by the instruction code on Serial Data Input (DI). Chip Select (CS#) must be driven Low for the
entire duration of the sequence.
The instruction sequence is shown in Figure 21. Chip Select (CS#) must be driven High after the eighth
bit of the instruction code has been latched in, otherwise the Deep Power-down (DP) instruction is not
executed. As soon as Chip Select (CS#) is driven High, it requires a delay of t
before the supply
DP
current is reduced to ICC2 and the Deep Power-down mode is entered.
Any Deep Power-down (DP) instruction, while an Erase, Program or Write cycle is in progress, is
rejected without having any effects on the cycle that is in progress.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
38
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 21. Deep Power-down Instruction Sequence Diagram
Release from Deep Power-down and Read Device ID (RDI)
Once the device has entered the Deep Power-down mode, all instructions are ignored except the
Release from Deep Power-down and Read Device ID (RDI) instruction. Executing this instruction takes
the device out of the Deep Power-down mode.
Please note that this is not the same as, or even a subset of, the JEDEC 16-bit Electronic Signature
that is read by the Read Identifier (RDID) instruction. The old-style Electronic Signature is supported for
reasons of backward compatibility, only, and should not be used for new designs. New designs should,
instead, make use of the JEDEC 16-bit Electronic Signature, and the Read Identifier (RDID) instruction.
When used only to release the device from the power-down state, the instruction is issued by driving
the CS# pin low, shifting the instruction code “ABh” and driving CS# high as shown in Figure 22. After
the time duration of t
(See AC Characteristics) the device will resume normal operation and other
RES1
instructions will be accepted. The CS# pin must remain high during the t
time duration.
RES1
When used only to obtain the Device ID while not in the power-down state, the instruction is initiated by
driving the CS# pin low and shifting the instruction code “ABh” followed by 3-dummy bytes. The Device
ID bits are then shifted out on the falling edge of CLK with most significant bit (MSB) first as shown in
Figure 23. The Device ID value for the EN25Q64 are listed in Table 5. The Device ID can be read
continuously. The instruction is completed by driving CS# high.
When Chip Select (CS#) is driven High, the device is put in the Stand-by Power mode. If the device
was not previously in the Deep Power-down mode, the transition to the Stand-by Power mode is
immediate. If the device was previously in the Deep Power-down mode, though, the transition to the
Standby Power mode is delayed by t
, and Chip Select (CS#) must remain High for at least t
RES2
RES2
(max), as specified in Table 11. Once in the Stand-by Power mode, the device waits to be selected, so
that it can receive, decode and execute instructions.
Except while an Erase, Program or Write Status Register cycle is in progress, the Release from Deep
Power-down and Read Device ID (RDI) instruction always provides access to the 8bit Device ID of the
device, and can be applied even if the Deep Power-down mode has not been entered.
Any Release from Deep Power-down and Read Device ID (RDI) instruction while an Erase, Program or
Write Status Register cycle is in progress, is not decoded, and has no effect on the cycle that is in
progress.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
39
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 22. Release Power-down Instruction Sequence Diagram
Figure 23. Release Power-down / Device ID Instruction Sequence Diagram
Read Manufacturer / Device ID (90h)
The Read Manufacturer/Device ID instruction is an alternative to the Release from Power-down /
Device ID instruction that provides both the JEDEC assigned manufacturer ID and the specific device
ID.
The Read Manufacturer/Device ID instruction is very similar to the Release from Power-down / Device
ID instruction. The instruction is initiated by driving the CS# pin low and shifting the instruction code
“90h” followed by a 24-bit address (A23-A0) of 000000h. After which, the Manufacturer ID for Eon (1Ch)
and the Device ID are shifted out on the falling edge of CLK with most significant bit (MSB) first as
shown in Figure 24. The Device ID values for the EN25Q64 are listed in Table 5. If the 24-bit address is
initially set to 000001h the Device ID will be read first
The instruction sequence is shown in Figure 24.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
40
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 24. Read Manufacturer / Device ID Diagram
Figure 24.1. Read Manufacturer / Device ID Diagram under EQPI Mode
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
41
Rev. J, Issue Date: 2011/07/07
EN25Q64
Read Identification (RDID) (9Fh)
The Read Identification (RDID) instruction allows the 8-bit manufacturer identification to be read,
followed by two bytes of device identification. The device identification indicates the memory type in the
first byte , and the memory capacity of the device in the second byte .
Any Read Identification (RDID) instruction while an Erase or Program cycle is in progress, is not
decoded, and has no effect on the cycle that is in progress. The Read Identification (RDID) instruction
should not be issued while the device is in Deep Power down mode.
The device is first selected by driving Chip Select Low. Then, the 8-bit instruction code for the
instruction is shifted in. This is followed by the 24-bit device identification, stored in the memory, being
shifted out on Serial Data Output , each bit being shifted out during the falling edge of Serial Clock .
The instruction sequence is shown in Figure 25. The Read Identification (RDID) instruction is
terminated by driving Chip Select High at any time during data output.
When Chip Select is driven High, the device is put in the Standby Power mode. Once in the Standby
Power mode, the device waits to be selected, so that it can receive, decode and execute instructions.
The instruction sequence is shown in Figure 25.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
Figure 25. Read Identification (RDID)
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
42
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 25.1. Read Identification (RDID) under EQPI Mode
Enter OTP Mode (3Ah)
This Flash has an extra 512 bytes OTP sector, user must issue ENTER OTP MODE command to read,
program or erase OTP sector. After entering OTP mode, the OTP sector is mapping to sector 2047,
SRP bit becomes OTP_LOCK bit and can be read with RDSR command. Program / Erase command
will be disabled when OTP_LOCK bit is ‘1’
WRSR command will ignore the input data and program OTP_LOCK bit to 1.
User must clear the protect bits before enter OTP mode.
OTP sector can only be program and erase before OTP_LOCK bit is set to ‘1’ and BP [3:0] = ‘0000’. In
OTP mode, user can read other sectors, but program/erase other sectors only allowed when
OTP_LOCK bit equal to ‘0’.
User can use WRDI (04h) command to exit OTP mode.
While in OTP mode, user can use Sector Erase (20h) command only to erase OTP data.
The instruction sequence is shown in Figure 26.1 while using the Enable Quad Peripheral Interface mode
(EQPI) (38h) command.
Table 7. OTP Sector Address
Sector
2047
Sector Size
512 byte
Address Range
7FF000h – 7FF1FFh
Note: The OTP sector is mapping to sector 2047
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
43
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 26. Enter OTP Mode
Figure 26.1 Enter OTP Mode Sequence under EQPI Mode
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
44
Rev. J, Issue Date: 2011/07/07
EN25Q64
Power-up Timing
Figure 27. Power-up Timing
Table 8. Power-Up Timing and Write Inhibit Threshold
Symbol
Parameter
Min.
10
1
Max.
Unit
µs
(1)
t
VCC(min) to CS# low
VSL
(1)
t
Time delay to Write instruction
Write Inhibit Voltage
10
ms
V
PUW
(1)
1
2.5
VWI
Note:
1.The parameters are characterized only.
2. VCC (max.) is 3.6V and VCC (min.) is 2.7V
INITIAL DELIVERY STATE
The device is delivered with the memory array erased: all bits are set to 1 (each byte contains FFh).
The Status Register contains 00h (all Status Register bits are 0).
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
45
Rev. J, Issue Date: 2011/07/07
EN25Q64
Table 9. DC Characteristics
(Ta = - 40°C to 85°C; VCC = 2.7-3.6V)
Symbol
Parameter
Test Conditions
Min.
Max.
Unit
I
Input Leakage Current
± 2
µA
LI
I
Output Leakage Current
Standby Current
± 2
20
20
µA
µA
µA
LO
I
CS# = V , V = V
CC IN
CS# = V , V = V
CC IN
or V
or V
at
CC1
SS
SS
CC
CC
I
Deep Power-down Current
CC2
CLK = 0.1 V
/ 0.9 V
CC
CC
25
20
mA
mA
104MHz, DQ = open
CLK = 0.1 V / 0.9 V
I
Operating Current (READ)
CC3
at
CC CC
80MHz, DQ = open
I
Operating Current (PP)
Operating Current (WRSR)
Operating Current (SE)
Operating Current (BE)
CS# = V
CC
CS# = V
CC
CS# = V
CC
CS# = V
CC
28
18
25
25
mA
mA
mA
mA
CC4
I
CC5
I
CC6
I
CC7
V
0.2 V
CC
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
– 0.5
V
V
V
V
IL
V
0.7V
V +0.4
CC
IH
CC
V
I
I
= 1.6 mA
0.4
OL
OL
V
= –100 µA
V
-0.2
OH
OH
CC
Table 10. AC Measurement Conditions
Symbol
Parameter
Min.
Max.
Unit
Load Capacitance
20/30
pF
ns
V
CL
Input Rise and Fall Times
Input Pulse Voltages
5
0.2VCC to 0.8VCC
0.3VCC to 0.7VCC
Input Timing Reference Voltages
V
Output Timing Reference Voltages
V
VCC / 2
Notes:
1.
CL = 20 pF when CLK = 104MHz, CL = 30 pF when CLK = 80MHz,
Figure 28. AC Measurement I/O Waveform
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
46
Rev. J, Issue Date: 2011/07/07
EN25Q64
Table 11. AC Characteristics
(Ta = - 40°C to 85°C; VCC = 2.7-3.6V)
Symbol
Alt
Parameter
Min
D.C.
Typ
Max
104
80
Unit
Serial Clock Frequency for:
FAST_READ, PP, SE, BE, DP, RES, WREN,
WRDI, WRSR
Serial Clock Frequency for:
RDSR, RDID, Dual Output Fast Read.
Serial Clock Frequency for READ, Quad I/O Fast
Read
MHz
FR
fC
D.C.
D.C.
MHz
MHz
fR
50
1
tCH
Serial Clock High Time
4
4
ns
ns
1
tCL
Serial Clock Low Time
2
tCLCH
Serial Clock Rise Time (Slew Rate)
Serial Clock Fall Time (Slew Rate)
CS# Active Setup Time (Relative to CLK)
CS# Active Hold Time (Relative to CLK)
CS# Not Active Setup Time (Relative to CLK)
CS# Not Active Hold Time (Relative to CLK)
0.1
0.1
5
V / ns
V / ns
ns
2
tCHCL
tSLCH
tCHSH
tSHCH
tCHSL
tCSS
5
ns
5
ns
5
ns
CS# High Time for read
CS# High Time for program/erase
15
50
ns
ns
tSHSL
tCSH
2
tDIS
tHO
tDSU
tDH
tV
tSHQZ
Output Disable Time
6
8
ns
ns
ns
ns
ns
ns
ns
µs
tCLQX
tDVCH
tCHDX
tCLQV
Output Hold Time
0
2
5
Data In Setup Time
Data In Hold Time
Output Valid from CLK
3
tWHSL
Write Protect Setup Time before CS# Low
Write Protect Hold Time after CS# High
CS# High to Deep Power-down Mode
20
3
tSHWL
100
2
tDP
3
3
CS# High to Standby Mode without Electronic
Signature read
2
tRES1
µs
µs
CS# High to Standby Mode with Electronic
Signature read
2
tRES2
1.8
tW
Write Status Register Cycle Time
Page Programming Time
Sector Erase Time
15
50
5
ms
ms
s
tPP
tSE
tBE
tCE
1.3
0.06
0.3
30
0.3
2
Block Erase Time
s
70
28
0
s
Chip Erase Time
WIP = write operation
Software Reset
µs
µs
tSR
Latency
WIP = not in write operation
Note: 1. tCH + tCL must be greater than or equal to 1/ fC
2. Value guaranteed by characterization, not 100% tested in production.
3. Only applicable as a constraint for a Write status Register instruction when Status Register Protect Bit is set at 1.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
47
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 29. Serial Output Timing
Figure 30. Input Timing
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
48
Rev. J, Issue Date: 2011/07/07
EN25Q64
ABSOLUTE MAXIMUM RATINGS
Stresses above the values so mentioned above may cause permanent damage to the device. These
values are for a stress rating only and do not imply that the device should be operated at conditions up
to or above these values. Exposure of the device to the maximum rating values for extended periods of
time may adversely affect the device reliability.
Parameter
Value
Unit
Storage Temperature
-65 to +150
°C
Plastic Packages
-65 to +125
200
°C
Output Short Circuit Current1
mA
Input and Output Voltage
(with respect to ground) 2
-0.5 to +4.0
-0.5 to +4.0
V
V
Vcc
Notes:
1.
2.
No more than one output shorted at a time. Duration of the short circuit should not be greater than one second.
Minimum DC voltage on input or I/O pins is –0.5 V. During voltage transitions, inputs may undershoot Vss to –1.0V for periods of
up to 50ns and to –2.0 V for periods of up to 20ns. See figure below. Maximum DC voltage on output and I/O pins is Vcc + 0.5
V. During voltage transitions, outputs may overshoot to Vcc + 1.5 V for periods up to 20ns. See figure below.
RECOMMENDED OPERATING RANGES 1
Parameter
Value
-40 to 85
Unit
Ambient Operating Temperature
Industrial Devices
°C
Operating Supply Voltage
Vcc
Full: 2.7 to 3.6
V
Notes:
1. Recommended Operating Ranges define those limits between which the functionality of the device is guaranteed.
Vcc
+1.5V
Maximum Negative Overshoot Waveform
Maximum Positive Overshoot Waveform
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
49
Rev. J, Issue Date: 2011/07/07
EN25Q64
Table 12. DATA RETENTION and ENDURANCE
Parameter Description
Test Conditions
Min
Unit
150°C
10
Years
Years
cycles
Data Retention Time
125°C
20
Erase/Program Endurance
-40 to 85 °C
100k
Table 13. CAPACITANCE
( VCC = 2.7-3.6V)
Parameter Symbol
Parameter Description
Test Setup
Typ
Max
Unit
C
V
= 0
IN
IN
Input Capacitance
6
pF
pF
C
OUT
V
OUT
= 0
Output Capacitance
8
Note : Sampled only, not 100% tested, at T = 25°C and a frequency of 20MHz.
A
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
50
Rev. J, Issue Date: 2011/07/07
EN25Q64
PACKAGE MECHANICAL
Figure 31. SOP 200 mil ( official name = 208 mil )
DIMENSION IN MM
SYMBOL
MIN.
1.75
0.05
1.70
5.15
7.70
5.15
- - -
NOR
1.975
0.15
MAX
2.20
0.25
1.95
5.40
8.10
5.40
- - -
A
A1
A2
D
1.825
5.275
7.90
E
E1
e
5.275
1.27
b
0.35
0.5
00
0.425
0.65
40
0.50
0.80
80
L
θ
Note : 1. Coplanarity: 0.1 mm
2. Max. allowable mold flash is 0.15 mm
at the pkg ends, 0.25 mm between leads.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
51
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 32. VDFN 8 ( 5x6 mm )
Controlling dimensions are in millimeters (mm).
DIMENSION IN MM
SYMBOL
MIN.
0.70
0.00
- - -
5.90
4.90
3.30
3.90
- - -
NOR
0.75
0.02
0.20
6.00
5.00
3.40
4.00
1.27
0.40
0.60
MAX
0.80
0.04
- - -
6.10
5.10
3.50
4.10
- - -
A
A1
A2
D
E
D2
E2
e
b
L
0.35
0.55
0.45
0.65
Note : 1. Coplanarity: 0.1 mm
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
52
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 33. VDFN 8 ( 6x8 mm )
Notice:
This package can’t contact to metal
trace or pad on board due to expose
metal pad underneath the package.
DIMENSION IN MM
SYMBOL
MIN.
0.70
0.00
- - -
NOR
0.75
0.02
0.20
8.00
6.00
4.70
4.60
1.27
0.40
0.50
MAX
0.80
0.05
- - -
A
A1
A2
D
7.90
5.90
4.65
4.55
- - -
8.10
6.10
4.75
4.65
- - -
E
D1
E1
e
b
0.35
0.4
0.48
0.60
L
Note : 1. Coplanarity: 0.1 mm
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
53
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 34. PDIP8
DIMENSION IN INCH
SYMBOL
MIN.
NOR
- - -
MAX
0.210
- - -
A
A1
A2
D
- - -
0.015
0.125
0.355
0.300
0.245
0.115
0.310
0
- - -
0.130
0.365
0.310
0.250
0.130
0.350
7
0.135
0.400
0.320
0.255
0.150
0.375
15
E
E1
L
eB
Θ0
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
54
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 35. 16 LEAD SOP 300 mil
DIMENSION IN MM
SYMBOL
MIN.
- - -
NOR
- - -
MAX
2.65
0.30
2.40
0.30
10.50
10.65
7.60
- - -
A
A1
A2
C
0.10
2.25
0.20
10.10
10.00
7.40
- - -
0.20
- - -
0.25
10.30
- - -
D
E
E1
e
7.50
1.27
- - -
b
0.31
0.51
1.27
80
L
0.4
00
- - -
50
θ
Note : 1. Coplanarity: 0.1 mm
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
55
Rev. J, Issue Date: 2011/07/07
EN25Q64
Figure 36. 24-ball Thin Profile Fine-Pitch Ball Grid Array (6 x 8 mm) Package
DI MENSI ON IN MM
SYMBOL
MIN.
- - -
NOR
- - -
MAX
1.20
0. 37
A
A1
A2
A3
D
0. 27
- - -
0.21 REF
0.54 REF
6 BSC
8 BSC
3.00
E
D1
E1
e
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
5.00
1.00
b
0.40
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
56
Rev. J, Issue Date: 2011/07/07
EN25Q64
Purpose
Eon Silicon Solution Inc. (hereinafter called “Eon”) is going to provide its products’ top marking on
ICs with < cFeon > from January 1st, 2009, and without any change of the part number and the
compositions of the Ics. Eon is still keeping the promise of quality for all the products with the
same as that of Eon delivered before. Please be advised with the change and appreciate your
kindly cooperation and fully support Eon’s product family.
Eon products’ Top Marking
cFeon Top Marking Example:
cFeon
Part Number: XXXX-XXX
Lot Number: XXXXX
Date Code: XXXXX
For More Information
Please contact your local sales office for additional information about Eon memory solutions.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
57
Rev. J, Issue Date: 2011/07/07
EN25Q64
ORDERING INFORMATION
EN25Q64
-
104
H
I
P
PACKAGING CONTENT
P = RoHS compliant
TEMPERATURE RANGE
I = Industrial (-40°C to +85°C)
PACKAGE
H = 8-pin 200mil SOP
W = 8-pin VDFN (5x6mm)
Y = 8-pin VDFN (6x8mm)
Q = 8-pin PDIP
F = 16-pin 300mil SOP
BB = 24-ball TFBGA (6 x 8 x 1.2mm)
SPEED
104 = 104 MHz
BASE PART NUMBER
EN = Eon Silicon Solution Inc.
25Q = 3V Serial Flash with 4KB Uniform-Sector,
Dual and Quad I/O
64 = 64 Megabit (8192K x 8)
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
58
Rev. J, Issue Date: 2011/07/07
EN25Q64
Revisions List
Revision No Description
Date
A
Initial Release
2009/03/12
1. Update Block and Chip erase time (typ.) parameter on page 1 and 39.
(1). Block erase: from 0.4s to 0.5s
(2). Chip erase: from 15s to 30s
2. Add the Reset-Enable (RETEN), Reset (RST) commands and Software
Reset Flow on page 14, 16 and 17.
3. Add the description of OTP erase command on page 14, page 36.
4. Add the SR5 fail bit information in the table 7 Suspend Status Register
Bit Locations on page 21 and 22.
B
2009/04/28
5. Modify some parameter values in Table 12 on page 39.
(1). Modify RDSR, RDID from 50 to 80MHz
(2). Modify tCSH CS# High Time (min.) from100ns to 15ns for read and
50ns for program/erase.
(3). Modify tWS Write Suspend Latency (max.) from 10µs to 20µs.
(4). Add the tSR Software Reset Latency value (max.).
1. Add Figure 4. Quad SPI Modes on page 11.
2. Update Software Reset Flow on page 17.
3. Add Figure 8.1 Write Enable/Disable Instruction Sequence under EQIO
Mode on page 19.
4. Add Figure 9.1 Read Status Register Instruction Sequence under EQIO
Mode on page 20.
5. Add Figure 10.1 Read Suspend Status Register Instruction Sequence
under EQIO Mode on page 22.
6. Add Figure 11.1 Write Status Register Instruction Sequence under
EQIO Mode on page 24.
7. Add Figure 13.1 Fast Read Instruction Sequence under EQIO Mode on
page 26.
8. Add Figure 16.1. Quad Input / Output Fast Read Instruction Sequence
under EQIO Mode on page 29.
9. Add Figure 17.1 Quad Input/Output Fast Read Enhance Performance
Mode Sequence under EQIO Mode on page 32.
C
10. Add Figure 18.1 Program Instruction Sequence under EQIO Mode on 2009/07/27
page 34.
11. Add Figure 19. Write Suspend Instruction Sequence Diagram on page
34.
12. Add Figure 20. Write Resume Instruction Sequence Diagram on page
35.
13. Figure 20.1 Write Suspend/Resume Instruction Sequence under
EQIO Mode on page 36.
14. Add Figure 22.1 Block/Sector Erase Instruction Sequence under
EQIO Mode on page 38.
15. Add Figure 23.1 Chip Erase Sequence under EQIO Mode on page 40.
16. Add Figure 27.1. Read Manufacturer / Device ID Diagram under EQIO
Add Mode on page 43.
17. Add Figure 28.1. Read Identification (RDID) under EQIO Mode on
page 45.
18. Add Figure 29.1 Enter OTP Mode Sequence under EQIO Mode on
page 46.
D
E
Add Figure 21. Write Suspend/Resume Flow on page 37
1. For the standard SPI (single mode), change the speed from 100MHz to
104MHz. For the dual and quad SPI, change the speed from 80MHz
to 50MHz.
2009/09/01
2009/10/19
2. Add the package option of VDFN 8 ( 6 mm x 8 mm).
3. Modify Table 10. DC Characteristics I
(Standby) and I
(Deep
CC2
CC1
Power-down) Current from 5µA to 20µA on page 49.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
59
Rev. J, Issue Date: 2011/07/07
EN25Q64
Revisions List
Revision No Description
Date
1. Add 8-pin PDIP package option
2. Add 24-ball Ball Grid Array (6 x 8 mm) package option
3. For the dual and quad SPI, change the speed from 50MHz to 80MHz.
4. Remove Write Suspend and Write Resume information.
5. Modify Software Reset Latency from 20µs to 28µs on page 47.
F
2010/02/05
1. Update AC Characteristics in Table 11 on page 47.
(1). Sector Erase time from 0.09s to 0.06s (typ.)
(2). Block Erase time from 0.5s to 0.3s (typ.)
1. Rename 38h command from Enable Quad I/O (EQIO) to Enable Quad
Peripheral Interface mode (EQPI).
2. Revise the speed of Quad SPI from 80MHz to 50MHz.
3. Revise the Chip Erase Time (Max.) from 50s to 70s on page47.
1. Update Write Status Register Cycle Time from 10 (typ.) /15 (max.) ms to 15
(typ.) / 50 (max.) ms on page 47.
G
H
2010/04/19
2011/01/10
2011/04/18
I
2. Rename 24 Ball package from BGA to TFBGA.
1. Add the note “5. This flow cannot release the device from Deep power
down mode.” on page 19.
J
2011/07/07
2. Correct the typo of 6 dummy clocks for EBh command on page 28.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc., www.eonssi.com
60
Rev. J, Issue Date: 2011/07/07
相关型号:
©2020 ICPDF网 联系我们和版权申明