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參數(shù)資料
| 型號： | M95256-VBN1T |
| 廠商： | 意法半導體 |
| 元件分類： | EEPROM |
| 英文描述： | 256/128 Kbit Serial SPI Bus EEPROM With High Speed Clock |
| 中文描述： | 一百二十八分之二百五十六千位串行SPI總線的EEPROM高速時鐘 |
| 文件頁數(shù)： | 13/39頁 |
| 文件大小： | 580K |
| 代理商： | M95256-VBN1T |
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M95256, M95128
Write Enable (WREN)
The Write Enable Latch (WEL) bit must be set pri-
or to each WRITE and WRSR instruction. The only
way to do this is to send a Write Enable instruction
to the device.
As shown in
Figure 8.
, to send this instruction to
the device, Chip Select (S) is driven Low, and the
bits of the instruction byte are shifted in, on Serial
Data Input (D). The device then enters a wait
state. It waits for a the device to be deselected, by
Chip Select (S) being driven High.
Figure 8. Write Enable (WREN) Sequence
Write Disable (WRDI)
One way of resetting the Write Enable Latch
(WEL) bit is to send a Write Disable instruction to
the device.
As shown in
Figure 9.
, to send this instruction to
the device, Chip Select (S) is driven Low, and the
bits of the instruction byte are shifted in, on Serial
Data Input (D).
The device then enters a wait state. It waits for a
the device to be deselected, by Chip Select (S) be-
ing driven High.
The Write Enable Latch (WEL) bit, in fact, be-
comes reset by any of the following events:
–
Power-up
–
WRDI instruction execution
–
WRSR instruction completion
–
WRITE instruction completion.
Figure 9. Write Disable (WRDI) Sequence
C
D
AI02281E
S
Q
2
1
3
4
5
6
7
High Impedance
0
Instruction
C
D
AI03750D
S
Q
2
1
3
4
5
6
7
High Impedance
0
Instruction
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| M95256-VBN3T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256/128 Kbit Serial SPI Bus EEPROM With High Speed Clock |
| M95256-VBN5T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256/128 Kbit Serial SPI Bus EEPROM With High Speed Clock |
| M95256-VBN6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256/128 Kbit Serial SPI Bus EEPROM With High Speed Clock |
| M95256-VDL1T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256/128 Kbit Serial SPI Bus EEPROM With High Speed Clock |
| M95256-VDL3T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256/128 Kbit Serial SPI Bus EEPROM With High Speed Clock |
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