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M25PE80 データシート(PDF) 22 Page - STMicroelectronics

部品番号 M25PE80
部品情報  8 Mbit, low-voltage, Page-Erasable Serial Flash memory with Byte alterability, 50MHz SPI bus, standard pinout
PDF  61 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M25PE80 データシート(HTML) 22 Page - STMicroelectronics

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Instructions
M25PE80
22/61
Figure 7.
Write Enable (WREN) instruction sequence
6.2
Write Disable (WRDI)
The Write Disable (WRDI) instruction (Figure 8) resets the Write Enable Latch (WEL) bit.
The Write Disable (WRDI) instruction is entered by driving Chip Select (S) Low, sending the
instruction code, and then driving Chip Select (S) High.
The Write Enable Latch (WEL) bit is reset under the following conditions:
●
Power-up
●
Write Disable (WRDI) instruction completion
●
Page Write (PW) instruction completion
●
Page Program (PP) instruction completion
●
Write to Lock Register (WRLR) instruction completion
●
Page Erase (PE) instruction completion
●
Sector Erase (SE) instruction completion
●
Bulk Erase (BE) instruction completion
Figure 8.
Write Disable (WRDI) instruction sequence
C
D
AI02281E
S
Q
2
1
34567
High Impedance
0
Instruction
C
D
AI03750D
S
Q
2
1
34567
High Impedance
0
Instruction



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