参数资料
型号: W29C022-90B
厂商: WINBOND ELECTRONICS CORP
元件分类: PROM
英文描述: 256K X 8 FLASH 5V PROM, 90 ns, PDIP32
封装: 0.600 INCH, PLASTIC, DIP-32
文件页数: 19/21页
文件大小: 303K
代理商: W29C022-90B
W29C022
Publication Release Date: April 2001
- 7 -
Revision A2
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
Notes for software chip erase:
Data Format: DQ7
DQ0 (Hex)
Address Format: A14
A0 (Hex)
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