W49F002U-70B WINBOND [Winbond], W49F002U-70B Datasheet - Page 11

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

Command Codes for Boot Block Lockout Enable
Boot Block Lockout Enable Acquisition Flow
Notes for boot block lockout enable:
Data Format: DQ7 DQ0 (Hex)
Address Format: A14 A0 (Hex)
BYTE SEQUENCE
0 Write
1 Write
2 Write
3 Write
4 Write
5 Write
Boot Block Lockout
Feature Set Flow
address 2AAA
address 5555
address 2AAA
address 5555
Load data AA
address 5555
address 5555
Load data AA
Load data 55
Load data 80
Load data 40
Load data 55
Pause T
ADDRESS
2AAAH
2AAAH
5555H
5555H
5555H
5555H
Exit
to
to
to
to
to
to
- 11 -
BP
Pause T
BP
Publication Release Date: April 2000
DATA
W49F002U
AAH
AAH
55H
80H
55H
40H
Revision A2