w49v002a Winbond Electronics Corp America, w49v002a Datasheet - Page 8

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

Command Codes for Byte Program
Byte Program Flow Chart
Notes for software program code:
Data Format: DQ7 DQ0 (Hex); XX = Don't Care
Address Format: A14 A0 (Hex)
BYTE SEQUENCE
0 Write
1 Write
2 Write
3 Write
Programmed-Address
ADDRESS
2AAAH
5555H
5555H
Load data AA
address 2AAA
Byte Program
Command Flow
Load data A0
address 5555
Load data 55
address 5555
Load data Din
programmed-
Pause T
address
- 8 -
Exit
to
to
to
to
BP
Preliminary W49V002A
Programmed-Data
DATA
AAH
A0H
55H