25X32BVFIG Просмотр технического описания (PDF) - Winbond

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25X32BVFIG

32M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI

Winbond 

W25X32BV

10.2.3 Write Enable (06h)

The Write Enable instruction (Figure 4) sets the Write Enable Latch (WEL) bit in the Status Register to

a 1. The WEL bit must be set prior to every Page Program, Sector Erase, Block Erase, Chip Erase

and Write Status Register instruction. The Write Enable instruction is entered by driving /CS low,

shifting the instruction code “06h” into the Data Input (DI) pin on the rising edge of CLK, and then

driving /CS high.

Figure 4. Write Enable Instruction Sequence Diagram

10.2.4 Write Disable (04h)

The Write Disable instruction (Figure 5) 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 DIO 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, Page Program, Sector Erase, Block Erase and

Chip Erase instructions.

Figure 5. Write Disable Instruction Sequence Diagram

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Publication Release Date: October 7, 2009

Preliminary -- Revision C

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