W49F201S-45B View Datasheet(PDF) - Winbond

Part Name

Description

View to exact match

W49F201S-45B

128K x 16 CMOS FLASH MEMORY

Winbond 

Preliminary W49F201

Command Codes for Chip Erase

BYTE SEQUENCE

1 Write

2 Write

3 Write

4 Write

5 Write

6 Write

ADDRESS

5555H

2AAAH

5555H

5555H

2AAAH

5555H

Pause 200 mS

Chip Erase Acquisition Flow

Load data AA

to

address 5555

Load data 55

to

address 2AAA

Load data 80

to

address 5555

Load data AA

to

address 5555

Load data 55

to

address 2AAA

Load data 10

to

address 5555

Pause 200 mS

DATA

AAH

55H

80H

AAH

55H

10H

Exit

Notes for chip erase:

Data Format: DQ15-DQ8: Don't Care; DQ7−DQ0 (Hex)

Address Format: A14−A0 (Hex)

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