Winbond Confidential Bad Block Management for QspiNAND flash

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.

Winbond Electronics

W25NW35TW25N02JWW35N02JWW35NW25N512GVW25N512GWW25N01GWW25N01GVW25N01JWW25N02KVW25N04KVW35N01JW

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Part#

QspiNAND flash

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Application note & Design Guide

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Aug 3rd, 2021

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