W29C040P-12B Просмотр технического описания (PDF) - Winbond

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W29C040P-12B

512K ´8 CMOS FLASH MEMORY

Winbond 

Command Codes for Software Chip Erase

BYTE SEQUENCE

0 Write

1 Write

2 Write

3 Write

4 Write

5 Write

ADDRESS

5555H

2AAAH

5555H

5555H

2AAAH

5555H

Software 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 50 mS

Exit

Notes for software chip erase:

Data Format: DQ7−DQ0 (Hex)

Address Format: A14−A0 (Hex)

-7-

W29C040

DATA

AAH

55H

80H

AAH

55H

10H

Publication Release Date: May 1999

Revision A5

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