W39L020 Datasheet, PDF (10/26 Pages) Winbond – 256K × 8 CMOS FLASH MEMORY

Embedded Programming Algorithm
W39L020
Start
Write Program Command Sequence
(see below)
#Data Polling/ Toggle bit
Pause T BP
Increment Address
No
Last Address
?
Yes
Programming Completed
Program Command Sequence (Address/Command):
5555H/AAH
2AAAH/55H
5555H/A0H
Program Address/Program Data
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