M25P32-VMN6PB 查看數據表（PDF） - Numonyx -> Micron

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M25P32-VMN6PB

32-Mbit, low voltage, serial Flash memory with 75 MHz SPI bus interface

Numonyx -> Micron 

Instructions

M25P32

6.2

Write Disable (WRDI)

The Write Disable (WRDI) instruction (Figure 9) resets the Write Enable Latch (WEL) bit.

The Write Disable (WRDI) instruction is entered by driving Chip Select (S) Low, sending the

instruction 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 9. Write Disable (WRDI) instruction sequence

S

01234567

C

Instruction

D

High Impedance

Q

AI03750D

22/54

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