W49F201 Просмотр технического описания (PDF) - Winbond

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W49F201

128K x 16 CMOS FLASH MEMORY

Winbond 

Preliminary W49F201

Command Codes for Word Program

WORD SEQUENCE

0 Write

1 Write

2 Write

3 Write

ADDRESS

DATA

5555H

AAH

2AAAH

55H

5555H

A0H

Programmed-address

Programmed-data

Pause 50 µS

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 50 µS

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: June 1999

-7-

Revision A1

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