w39l020 Winbond Electronics Corp America, w39l020 Datasheet - Page 11

• Manufacturer Part Number: w39l020
• Description: 256k U 8 Cmos Flash Memory
• Manufacturer: Winbond Electronics Corp America

Embedded Erase Algorithm
Chip Erase Command Sequence
(Address/Command):
2AAAH/55H
5555H/AAH
2AAAH/55H
5555H/AAH
5555H/80H
5555H/10H
Write Erase Command Sequence
#Data Polling or Toggle
Bit Successfully Completed
Erasure Completed
(see below)
Start
Individual Sector Erase
(Address/Command):
Command Sequence
Sector Address/30H
2AAAH/55H
5555H/AAH
5555H/AAH
2AAAH/55H
5555H/80H
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Publication Release Date: November 11, 2002
Pause T
EC
/T
SEC
Individual Page Erase
Command Sequence
(Address/Command):
Page Address/50H
/T
PEC
2AAAH/55H
5555H/AAH
5555H/AAH
2AAAH/55H
5555H/80H
W39L020
Revision A4