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參數資料
| 型號： | W29C020-70A |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | PROM |
| 英文描述： | 256K X 8 CMOS FLASH MEMORY |
| 中文描述： | 256K X 8 FLASH 5V PROM, 70 ns, PDIP32 |
| 封裝： | 0.600 INCH, PLASTIC, DIP-32 |
| 文件頁數： | 9/21頁 |
| 文件大小： | 267K |
| 代理商： | W29C020-70A |
W29C020
Publication Release Date: February 1998
- 9 -
Revision A3
Command Codes for Boot Block Lockout Enable
BYTE SEQUENCE
BOOT BLOCK LOCKOUT FEATURE SET
ON FIRST 8K ADDRESS BOOT BLOCK
ADDRESS
5555H
2AAAH
5555H
5555H
2AAAH
5555H
00000H
BOOT BLOCK LOCKOUT FEATURE SET
ON LAST 8K ADDRESS BOOT BLOCK
ADDRESS
5555H
2AAAH
5555H
5555H
2AAAH
5555H
3FFFFH
DATA
AAH
55H
80H
AAH
55H
40H
00H
DATA
AAH
55H
80H
AAH
55H
40H
FFH
0 Write
1 Write
2 Write
3 Write
4 Write
5 Write
6 Write
Pause 10 mS
Pause 10 mS
Boot Block Lockout Enable 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 40
to
address 5555
Pause 10 mS
Load data 00
to
address 00000
Boot Block Lockout
Feature Set on First 8K
Address Boot Block
Boot Block Lockout
Feature Set on Last 8K
Address Boot Block
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 40
to
address 5555
Pause 10 mS
Load data FF
to
address 3FFFF
Notes for boot block lockout enable:
1. Data Format: DQ7
DQ0 (Hex)
2. Address Format: A14
A0 (Hex)
3. If you have any questions about this commend sequence, please contact the local distributor or Winbond Electronics Corp.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W29C020-70B | 制造商:WINBOND 制造商全稱:Winbond 功能描述:256K X 8 CMOS FLASH MEMORY |
| W29C020-90 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:256K X 8 CMOS FLASH MEMORY |
| W29C020-90A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:256K X 8 CMOS FLASH MEMORY |
| W29C020-90B | 制造商:WINBOND 制造商全稱:Winbond 功能描述:256K X 8 CMOS FLASH MEMORY |
| W29C020C | 制造商:WINBOND 制造商全稱:Winbond 功能描述:256K X 8 CMOS FLASH MEMORY |
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