M25PX32-VMP6F datasheet(26/63 Pages) STMICROELECTRONICS

No de pièce	M25PX32-VMP6F

Description	32-Mbit, dual I/O, 4-Kbyte subsector erase, serial Flash memory with 75 MHz SPI bus interface

PDF	63 Pages

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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Instructions

M25PX32

26/63

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

●

Write lo Lock Register (WRLR) instruction completion

●

Page Program (PP) instruction completion

●

Dual Input Fast Program (DIFP) instruction completion

●

Program OTP (POTP) instruction completion

●

Subsector Erase (SSE) instruction completion

●

Sector Erase (SE) instruction completion

●

Bulk Erase (BE) instruction completion

Figure 9.

Write Disable (WRDI) instruction sequence

DQ0

AI13732

DQ1

34567

High Impedance

Instruction

M25PX32-VMP6F Fiches technique(PDF) 26 Page - STMicroelectronics