IS25LP256D-RJLE-TY datasheet(163/179 Pages) ISSI

Part #	IS25LP256D-RJLE-TY

Description	SERIAL FLASH MEMORY WITH 166/133MHZ MULTI I/O SPI & QUAD I/O QPI DTR INTERFACE

PDF	179 Pages

Scroll/Zoom	100%

Manufacturer	ISSI [Integrated Silicon Solution, Inc]

Direct Link	http://www.issi.com

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163 / 179 page

IS25LP256D

IS25WP256D

Integrated Silicon Solution, Inc.- www.issi.com

163

Rev A15

08/05/2024

8.65 GANG SECTOR/BLOCK UNLOCK OPERATION (GBUN, 98h)

The Gang Sector/Block Unlock (GBUN) instruction provides a quick method to clear all DYB (Dynamic Protection

Bit)

bits to “1” at once.

The sequence of issuing GBUN instruction is: drive CE# low → send GBUN instruction code → drive CE# high.

The instruction code will be shifted into the device on the rising edge of SCK.

The GBUN command is accepted in both SPI and QPI mode. The CE# must go high exactly at the byte boundary,

otherwise, the instruction will be ignored and not be executed. While the GBUN operation is in progress, the Status

bit is “1” during the GBUN operation, and is “0” when it is completed.

Figure 8.150 Gang Sector/Block Unlock Sequence In SPI Mode

Instruction = 98h

CE#

SCK

Mode 3

Mode 0

High Impedance

Figure 8.151 Gang Sector/Block Unlock Sequence In QPI Mode

98h

CE#

SCK

IO[3:0]

Mode 3

Mode 0

IS25LP256D-RJLE-TY Datasheet(PDF) 163 Page - Integrated Silicon Solution, Inc