W29EE012 데이터 시트보기 (PDF) - Winbond

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W29EE012

128K x 8 CMOS FLASH MEMORY

Winbond 

W29EE012

Command Codes for Software Data Protection

BYTE SEQUENCE

0 Write

1 Write

2 Write

3 Write

4 Write

5 Write

TO ENABLE PROTECTION

ADDRESS

DATA

5555H

AAH

2AAAH

55H

5555H

A0H

-

-

-

-

-

-

TO DISABLE PROTECTION

ADDRESS

DATA

5555H

AAH

2AAAH

55H

5555H

80H

5555H

AAH

2AAAH

55H

5555H

20H

Software Data Protection Acquisition Flow

Software Data Protection

Enable Flow

Load data AA

to

address 5555

Software Data Protection

Disable Flow

Load data AA

to

address 5555

Load data 55

to

address 2AAA

Load data 55

to

address 2AAA

Load data A0

to

address 5555

Load data 80

to

address 5555

Load data AA

to

address 5555

Load data 55

to

address 2AAA

Notes for software program code:

Data Format: DQ7 − DQ0 (Hex)

Address Format: A14 − A0 (Hex)

Load data 20

to

address 5555

-6-

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