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25PE20VP データシート(PDF) 23 Page - STMicroelectronics

部品番号 25PE20VP
部品情報  1 and 2 Mbit, low voltage, Page-Erasable Serial Flash memories with Byte-Alterability, 50 MHz SPI bus, standard pinout
PDF  60 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

25PE20VP データシート(HTML) 23 Page - STMicroelectronics

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M25PE20, M25PE10
Instructions
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6.1
Write Enable (WREN)
The Write Enable (WREN) instruction (Figure 8) sets the Write Enable Latch (WEL) bit.
The Write Enable Latch (WEL) bit must be set prior to every Page Write (PW), Page
Program (PP), Page Erase (PE), and Sector Erase (SE) instruction.
The Write Enable (WREN) instruction is entered by driving Chip Select (S) Low, sending the
instruction code, and then driving Chip Select (S) High.
Figure 8.
Write Enable (WREN) instruction sequence
C
D
AI02281E
S
Q
2
1
34567
High Impedance
0
Instruction



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