W49F020 Datasheet, PDF (6/21 Pages) Winbond – 256K X 8 CMOS FLASH MEMORY

Preliminary W49F020
Command Codes for Byte Program
WORD SEQUENCE
ADDRESS
0 Write
5555H
1 Write
2AAAH
2 Write
5555H
3 Write
Programmed-Address
DATA
AAH
55H
A0H
Programmed-Data
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 50 µ S
Exit
Notes for software program code:
Data Format: DQ7−DQ0 (Hex
Address Format: A14−A0 (Hex)
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