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參數(shù)資料
| 型號(hào)： | W29C040T70BN |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | PROM |
| 英文描述： | 512K X 8 FLASH 5V PROM, 70 ns, PDSO32 |
| 封裝： | TSOP1-32 |
| 文件頁數(shù)： | 2/28頁 |
| 文件大?。?/td> | 257K |
| 代理商： | W29C040T70BN |
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W29C040
- 10 -
Command Codes for Product Identification and Boot Block Lockout Detection
BYTE SEQUENCE
ALTERNATE PRODUCT (7)
IDENTIFICATION/BOOT BLOCK LOCKOUT
DETECTION ENTRY
SOFTWARE PRODUCT
IDENTIFICATION/BOOT BLOCK LOCKOUT
DETECTION EXIT
ADDRESS
DATA
ADDRESS
DATA
0 Write
5555
AA
5555H
AAH
1 Write
2AAA
55
2AAAH
55H
2 Write
5555
90
5555H
F0H
3 Write
-
4 Write
-
5 Write
-
Pause 10
μS
Pause 10
μS
Software Product Identification and Boot Block Lockout Detection Acquisition Flow
Product
Identification
Entry (1)
Load data AA
to
address 5555
Load data 55
to
address 2AAA
Load data 90
to
address 5555
Product
Identification
and Boot Block
Lockout Detection
Mode (3)
Read address = 00000
data = DA
Read address = 00001
data = 46
Read address = 00002
data = FF/FE
(4)
Read address = 7FFF2
data = FF/FE
(5)
Product
Identification
Exit (1)
Load data AA
to
address 5555
Load data 55
to
address 2AAA
Load data F0
to
address 5555
Pause 10 uS
Normal Mode
(6)
(2)
Notes for software product identification/boot block lockout detection:
(1) Data Format: DQ7
DQ0 (Hex); Address Format: A14 A0 (Hex)
(2) A1
A18 = VIL; manufacture code is read for A0 = VIL; device code is read for A0 = VIH.
(3) The device does not remain in identification and boot block (address 0002 Hex/7FFF2 Hex respond to first 16K/last 16K) lockout detection
mode
if power down.
(4), (5) If the output data is "FF Hex," the boot block programming lockout feature is activated; if the output data "FE Hex," the lockout feature is
inactivated and the block can be programmed.
(6) The device returns to standard operation mode.
(7) This product supports both the JEDEC standard 3 bytes command code sequence and original 6 byte command code sequence. For new
designs, Winbond recommends that the 3 bytes command code sequence be used.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W29C040T-90 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY |
| W29C040T-90B | 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY |
| W29C040T90BN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM |
| W29C040T-90N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM|FLASH|512KX8|CMOS|TSSOP|32PIN|PLASTIC |
| W29C101-12 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 Flash EEPROM |
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