W49F201S-45B WINBOND [Winbond], W49F201S-45B Datasheet - Page 9

• Manufacturer Part Number: W49F201S-45B
• Description: 128K X 16 CMOS FLASH MEMORY
• Manufacturer: WINBOND [Winbond]

Command Codes for Sector Erase
Sector Erase Acquisition Flow
Notes for chip erase:
Data Format: DQ15-DQ8: Don't Care; DQ7 DQ0 (Hex)
Address Format: A14 A0 (Hex)
SA = 03XXX for parameter block1
SA = 05XXX for parameter block2
SA = 1FXXX
- for Main Memory Block when Boot Block lockout feature is activated
- for both Boot Block and Main Memory Block when Boot Block lockout feature is inactivated
BYTE SEQUENCE
1 Write
2 Write
3 Write
4 Write
5 Write
6 Write
Pause 200 mS
Load data AA
address 2AAA
address 2AAA
Load data AA
Load data 30
address 5555
address 5555
address SA*
address 5555
Load data 55
Load data 55
Load data 80
ADDRESS
2AAAH
2AAAH
5555H
5555H
5555H
SA*
- 9 -
Exit
to
to
to
to
to
to
Pause 200 mS
Preliminary W49F201
Publication Release Date: June 1999
DATA
AAH
AAH
55H
80H
55H
30H
Revision A1