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BQ27Z558: BQ27Z558 Authentication key

yichong wu
Prodigy 175 points

Part Number: BQ27Z558
Other Parts Discussed in Thread: SHA-256,

Tool/software:

BQ27Z558 support SHA-256 authentication which should contain a 64 bit authentication key , but we found that item 12.8.20 in the TRM  define the key as 32 bit, please let me know how to program a 32 bit key to the IC.