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W25Q80DVZPI View Datasheet(PDF) - Winbond

Part NameDescriptionManufacturer
W25Q80DVZPI 3V 8M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI Winbond
Winbond Winbond
W25Q80DVZPI Datasheet PDF : 71 Pages
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W25Q80DV
Write Disable (04h)
The Write Disable instruction (Figure 6) resets the Write Enable Latch (WEL) bit in the Status Register
to a 0. The Write Disable instruction is entered by driving /CS low, shifting the instruction code “04h” into
the DI pin and then driving /CS high. Note that the WEL bit is automatically reset after Power-up and
upon completion of the Write Status Register. Erase/Program Security Registers, Page Program, Quad
Page Program, Sector Erase, Block Erase and Chip Erase instructions. Write Disable instruction can
also be used to invalidate the Write Enable for Volatile Status Register instruction
/CS
CLK
Mode 3
Mode 0
DI
(IO0)
DO
(IO1)
0 1 2 3 4 5 6 7 Mode 3
Mode 0
Instruction (04h)
High Impedance
/CS
CLK
IO0
Mode 3
Mode 0
01
Instruction
04h
Mode 3
Mode 0
IO1
IO2
IO3
Figure 6. Write Disable Instruction Sequence Diagram
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Publication Release Date:July 21, 2015
Prelimry-Revision G
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