Rainbow Electronics W49L102 User Manual

Page 7

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Preliminary W49L102

Publication Release Date: June 1999

- 7 -

Revision A1

Command Codes for Chip Erase

BYTE SEQUENCE

ADDRESS

DATA

1 Write

5555H

AAH

2 Write

2AAAH

55H

3 Write

5555H

80H

4 Write

5555H

AAH

5 Write

2AAAH

55H

6 Write

5555H

10H

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

Exit

Pause 1 Sec.

Load data 10

to

address 5555

Notes for chip erase:

Data Format: DQ15-DQ8: Don't Care; DQ7

DQ0 (Hex)

Address Format: A14

A0 (Hex)

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