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W29C020T-70A Datasheet(PDF) 7 Page - Winbond

Part # W29C020T-70A
Description  256K X 8 CMOS FLASH MEMORY
Download  21 Pages
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Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W29C020T-70A Datasheet(HTML) 7 Page - Winbond

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W29C020
Publication Release Date: February 1998
- 7 -
Revision A3
Command Codes for Software Chip Erase
BYTE SEQUENCE
ADDRESS
DATA
0 Write
5555H
AAH
1 Write
2AAAH
55H
2 Write
5555H
80H
3 Write
5555H
AAH
4 Write
2AAAH
55H
5 Write
5555H
10H
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)


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