SST26VF080AT-80ESLASHMF datasheet(35/72 Pages) MICROCHIP

Part #	SST26VF080AT-80E/MF

Description	2.5V/3.0V 8-Mbit Serial Quad I/O??(SQI?? Flash Memory

PDF	72 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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DS20006203C-page 35

SST26VF080A

5.31

Write Enable (WREN)

The Write Enable (WREN) instruction sets the Write

Enable Latch bit in the STATUS register to ‘1’, allowing

write operations to occur. The WREN instruction must be

executed prior to any of the following operations:

Sector Erase, 32-Kbyte Block Erase or 64-Kbyte Block

Erase, Chip Erase, Page Program, Program Security

ID, Lockout Security ID, Lock-Down Protection

Settings, SPI Quad Page program, and Write STATUS

low then sends the Write Enable command cycle (06H)

then drives CE# high. See Figures 5-34 and 5-35 for

the WREN instruction sequence.

FIGURE 5-34:

WRITE ENABLE SEQUENCE (SQI)

FIGURE 5-35:

WRITE ENABLE SEQUENCE (SPI)

MODE 3

SCK

SIO[3:0]

CE#

MODE 0

CE#

SCK

0 1 234 5 6 7

High-Impedance

MODE 0

MODE 3

MSB

SST26VF080AT-80E/MF Datasheet(PDF) 35 Page - Microchip Technology