w49v002a Winbond Electronics Corp America, w49v002a Datasheet - Page 9

• Manufacturer Part Number: w49v002a
• Description: 256k X 8 Cmos Flash Memory With Lpc Interface
• Manufacturer: Winbond Electronics Corp America

Command Codes for Chip Erase
Chip Erase Acquisition Flow
Notes for chip erase:
Data Format: DQ7 DQ0 (Hex)
Address Format: A14 A0 (Hex)
BYTE SEQUENCE
1 Write
2 Write
3 Write
4 Write
5 Write
6 Write
Load data AA
address 2AAA
address 2AAA
address 5555
address 5555
Load data AA
Load data 10
address 5555
Pause T
address 5555
Load data 55
Load data 55
Load data 80
ADDRESS
2AAAH
2AAAH
5555H
5555H
5555H
5555H
Exit
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EC
Preliminary W49V002A
Publication Release Date: April 2001
DATA
AAH
AAH
55H
80H
55H
10H
Revision A1