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M95010 bảng dữ liệu(PDF) 17 Page - STMicroelectronics

tên linh kiện M95010
Giải thích chi tiết về linh kiện  4 Kbit, 2 Kbit and 1 Kbit serial SPI bus EEPROM with high-speed clock
PDF  43 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M95010 bảng dữ liệu(HTML) 17 Page - STMicroelectronics

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M95040, M95020, M95010
Instructions
Doc ID 6512 Rev 8
17/43
6.2
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 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.
The Write Enable Latch (WEL) bit, in fact, becomes reset by any of the following events:
●
Power-up
●
WRDI instruction execution
●
WRSR instruction completion
●
WRITE instruction completion
●
Write Protect (W) line being held low.
Figure 8.
Write Disable (WRDI) sequence
C
D
AI03790D
S
Q
2
1
34567
High Impedance
0
Instruction



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