25Q16 查看數據表（PDF） - Winbond

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25Q16

8M-BIT, 16M-BIT AND 32M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI

Winbond 

W25Q80, W25Q16, W25Q32

10.2.4 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

10.2.5 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 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, Page Program, Sector Erase, Block Erase and Chip

Erase instructions.

Figure 5. Write Disable Instruction Sequence Diagram

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Publication Release Date: September 26, 2007

Preliminary - Revision B

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