W49V002A Datasheet, PDF (9/32 Pages) Winbond – 256K x 8 CMOS FLASH MEMORY WITH LPC INTERFACE

Preliminary W49V002A
Command Codes for Chip Erase
BYTE SEQUENCE
1 Write
2 Write
3 Write
4 Write
5 Write
6 Write
ADDRESS
5555H
2AAAH
5555H
5555H
2AAAH
5555H
Chip Erase Acquisition Flow
Load data AA
to
address 5555
Load data 55
to
address 2AAA
Load data 80
to
address 5555
Load data AA
to
address 5555
Load data 55
to
address 2AAA
Load data 10
to
address 5555
Pause TEC
Exit
Notes for chip erase:
Data Format: DQ7−DQ0 (Hex)
Address Format: A14−A0 (Hex)
-9-
DATA
AAH
55H
80H
AAH
55H
10H
Publication Release Date: April 2001
Revision A1