W39V040B Datasheet, PDF (11/32 Pages) Winbond – 512K × 8 CMOS FLASH MEMORY WITH LPC INTERFACE

9.1 Embedded Programming Algorithm
W39V040B
Start
Write Program Command Sequence
(see below)
#Data Polling/ Toggle bit
Programming Completed
Program Command Sequence (Address/Command):
5555H/AAH
2AAAH/55H
5555H/A0H
Program Address/Program Data
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Publication Release Date: April 14, 2005
Revision A3