M25P80-VMW3 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
M25P80-VMW3
STMicroelectronics
'M25P80-VMW3' PDF : 41 Pages View PDF
M25P80
Write Enable (WREN)
The Write Enable (WREN) instruction (Figure 9.)
sets the Write Enable Latch (WEL) bit.
The Write Enable Latch (WEL) bit must be set pri-
or to every Page Program (PP), Sector Erase
(SE), Bulk Erase (BE) and Write Status Register
(WRSR) instruction.
The Write Enable (WREN) instruction is entered
by driving Chip Select (S) Low, sending the in-
struction code, and then driving Chip Select (S)
High.
Figure 9. Write Enable (WREN) Instruction Sequence
S
01234567
C
Instruction
D
High Impedance
Q
AI02281E
Write Disable (WRDI)
The Write Disable (WRDI) instruction (Figure 10.)
resets the Write Enable Latch (WEL) bit.
The Write Disable (WRDI) instruction is entered by
driving Chip Select (S) Low, sending the instruc-
tion 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
– Write Status Register (WRSR) instruction
completion
– Page Program (PP) instruction completion
– Sector Erase (SE) instruction completion
– Bulk Erase (BE) instruction completion
Figure 10. Write Disable (WRDI) Instruction Sequence
S
01234567
C
Instruction
D
High Impedance
Q
AI03750D
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