25X32AVFIG 데이터 시트보기 (PDF) - Winbond

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25X32AVFIG

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

Winbond 

W25X32A

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 Dissable 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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