SST26VF016B-104VSLASHSN datasheet(33/84 Pages) MICROCHIP

Part #	SST26VF016B-104V/SN

Description	2.5V/3.0V 16-Mbit Serial Quad I/O™ (SQI™) Flash Memory

PDF	84 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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DS20005262G-page 33

SST26VF016B

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: Sec-

tor Erase, Block Erase, Chip Erase, Page Program,

Program Security ID, Lockout Security ID, Write Block

Protection Register, Lock-Down Block Protection Reg-

ister, Nonvolatile Write Lock Lock-Down Register, SPI

Quad Page program and Write Status Register. To exe-

cute a Write Enable, the host drives CE# low, then

sends the Write Enable command cycle (06H) and

drives CE# high. See Figures 5-32 and 5-33 for the

WREN instruction sequence.

FIGURE 5-32:

WRITE ENABLE SEQUENCE (SQI)

FIGURE 5-33:

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

SST26VF016B-104V/SN Datasheet(PDF) 33 Page - Microchip Technology