W29C102 Datasheet, PDF (7/21 Pages) Winbond – 64K 16 CMOS FLASH MEMORY

W29C102
Command Codes for Software Chip Erase
BYTE SEQUENCE
ADDRESS
0 Write
5555H
1 Write
2AAAH
2 Write
5555H
3 Write
5555H
4 Write
2AAAH
5 Write
5555H
Software Chip Erase Acquisition Flow
Load data AAAA
to
address 5555
Load data 5555
to
address 2AAA
Load data 8080
to
address 5555
Load data AAAA
to
address 5555
Load data 5555
to
address 2AAA
Load data 1010
to
address 5555
Pause 50 mS
Exit
Notes for software chip erase:
Data Format: DQ15−DQ0 (Hex)
Address Format: A14−A0 (Hex)
-7-
DATA
AAAAH
5555H
8080H
AAAAH
5555H
1010H
Publication Release Date: March 1998
Revision A3