W49F002U-70B WINBOND [Winbond], W49F002U-70B Datasheet - Page 8

• Manufacturer Part Number: W49F002U-70B
• Description: 256K X 8 CMOS FLASH MEMORY
• Manufacturer: WINBOND [Winbond]

Command Codes for Chip Erase
Chip Erase Acquisition Flow
Notes for chip erase:
Data Format: DQ7 DQ0 (Hex)
Address Format: A14 A0 (Hex)
BYTE SEQUENCE
1 Write
2 Write
3 Write
4 Write
5 Write
6 Write
Load data AA
address 2AAA
address 2AAA
address 5555
Load data AA
Load data 10
address 5555
address 5555
address 5555
Load data 55
Load data 55
ADDRESS
Load data 80
Pause T
2AAAH
2AAAH
5555H
5555H
5555H
5555H
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Exit
to
to
to
to
to
to
EC
DATA
W49F002U
AAH
AAH
55H
80H
55H
10H