W49L201 Datasheet, PDF (7/23 Pages) Winbond – 256K X 8 CMOS FLASH MEMORY

Preliminary W49L201
Command Codes for Word Program
WORD SEQUENCE
0 Write
1 Write
2 Write
3 Write
ADDRESS
5555H
2AAAH
5555H
Programmed-address
Pause TBC
DATA
AAH
55H
A0H
Programmed-data
Word Program Flow Chart
Word 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 T_BC
Exit
Notes for software program code:
Data Format: DQ15−DQ8: Don't Care; DQ7-DQ0 (Hex)
Address Format: A14−A0 (Hex)
*It is not allowed to assert read command during the 4-word command sequence (program).
To assert the read command during the 4-word command sequence will abort programming procedure.
Publication Release Date: May 2000
-7-
Revision A1