W49F002U Datasheet, PDF (7/23 Pages) Winbond – 256K X 8 CMOS FLASH MEMORY

Command Codes for Byte Program
COMMAND SEQUENCE
0 Write
1 Write
2 Write
3 Write
ADDRESS
5555H
2AAAH
5555H
Programmed-address
Byte Program Flow Chart
Byte Program
Command Flow
Load data AA
to
address 5555
Load data 55
to
address 2AAA
Load data A0
to
address 5555
Load data Din
to
programmed-
address
Pause TBP
Notes for software program code:
Data Format: DQ7−DQ0 (Hex)
Address Format: A14−A0 (Hex)
Exit
W49F002U
DATA
AAH
55H
A0H
Programmed-data
Publication Release Date: April 2000
-7-
Revision A2