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參數(shù)資料
| 型號： | SA25F020LENF |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | DRAM |
| 英文描述： | 4 Mbit Uniform Sector, Serial Flash Memory |
| 中文描述： | 4兆位統(tǒng)一部門，串行閃存 |
| 文件頁數(shù)： | 31/37頁 |
| 文件大?。?/td> | 560K |
| 代理商： | SA25F020LENF |
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SA25F020 Advanced Information
SAIFUN
31
Release from Software Protect
(RES)
Once the device has entered SP mode, all
instructions are ignored except the RES
mode.
Any RES instruction executed 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.
The device is first selected by driving CSb
low, followed by an 8
-
bit instruction byte,
with each bit being latched in on SI during
the rising edge of SCK.
Driving CSb high after the 8
-
bit instruction
byte has been received by the device, but
before the whole of the 8-bit Electronic
Signature has been transmitted for the first
time (as shown in Figure 21), will still
ensure that the device is put into Standby
mode. The transition to Standby mode is
delayed by t
RES
, and CSb must remain high
for at least t
RES
(max), as specified in
Table 4 on page 10. Once in Standby
mode, the device waits to be selected, so
that it can receive, decode and execute
instructions.
1
3
2
7
6
5
4
0
Instruction
SCK
SI
t
RES
Software Protect Mode
Standby Mode
CS
Figure 21. Release from Software Protect (RES) Instruction Sequence
相關(guān)PDF資料 |
PDF描述 |
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| SA25F020 | 4 Mbit Uniform Sector, Serial Flash Memory |
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| SA25F020LEM8F | 4 Mbit Uniform Sector, Serial Flash Memory |
| SA25F020LEMLF | 4 Mbit Uniform Sector, Serial Flash Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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