Winbond Confidential Bad Block Management for QspiNAND flash

PublishTime：2022-05-16

Winbond Serial NAND QspiNAND and OctalNAND flash supports bad block management (BBM) command set to swap good and bad blocks. Some of MCU can skip bad block and jump to next good block for read operation, but others cannot. Bad block management command set provide alternative solutionfor achieving continuous block address access.
Table 1 Below table shows specific Winbond QspiNAND and OctalNAND that have the block management command capabilities.

Brand of Product：	Winbond Electronics
Part#：	W25N 、 W35T 、 W25N02JW 、 W35N02JW 、 W35N 、 W25N512GV 、 W25N512GW 、 W25N01GW 、 W25N01GV 、 W25N01JW 、 W25N02KV 、 W25N04KV 、 W35N01JW More Part#
Product Category：	QspiNAND flash More
Application：	More
Data Type：	Application note & Design Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	Aug 3rd, 2021
Version Number：	Revision 1.0
Data Encoding：	AN0000050
Data Size：	788 KB

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