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M45PE16 Datasheet(PDF) 19 Page - STMicroelectronics

Part # M45PE16
Description  16 Mbit, low-voltage, Page-Erasable Serial Flash memory with byte alterability and a 50 MHz SPI bus interface
PDF  45 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M45PE16 Datasheet(HTML) 19 Page - STMicroelectronics

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M45PE16
Instructions
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6.2
Write Disable (WRDI)
The Write Disable (WRDI) instruction (Figure 7) 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
●
Page Erase (PE) instruction completion
●
Sector Erase (SE) instruction completion
Figure 7.
Write Disable (WRDI) instruction sequence
C
D
AI03750D
S
Q
2
1
34567
High Impedance
0
Instruction



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