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參數(shù)資料
| 型號(hào)： | IS23SC4428 |
| 廠(chǎng)商： | Integrated Silicon Solution, Inc. |
| 元件分類(lèi)： | DRAM |
| 英文描述： | 1024 x 8 Bits of EEPROM With Programmable Write Protection For Each Byte And Two Bytes of Programmable Security Code(1024 x 8位，每個(gè)字節(jié)帶可編程寫(xiě)保護(hù)，2字節(jié)可編程安全密碼的EEPROM) |
| 中文描述： | 1024 × 8位的EEPROM，具有可編程寫(xiě)保護(hù)對(duì)于每一個(gè)字節(jié)，兩個(gè)字節(jié)可編程保障法（1024 × 8位，每個(gè)字節(jié)帶可編程寫(xiě)保護(hù)，2字節(jié)可編程安全密碼的EEPROM中） |
| 文件頁(yè)數(shù)： | 5/12頁(yè) |
| 文件大?。?/td> | 78K |
| 代理商： | IS23SC4428 |
IS23SC4418/4428
Integrated Silicon Solution, Inc. — 1-800-379-4774
ADVANCE INFORMATION
NV001-0C
02/05/99
5
ISSI
Table 1. Control Words for IS23SC4418/4428 Commands
Command Name
Byte 1
Byte 2
Byte 3
S0 S1 S2 S3 S4 S5
A8 A9
A0-A7
D0-D7
Read 8-bits data without protect bit
0
1
1
1
0
0
A8 A9
A0-A7
Don't Care
Read 9-bits data with protect bit
0
0
1
1
0
0
A8 A9
A0-A7
Don't Care
Write and erase without protect bit
(1)
1
1
0
0
1
1
A8 A9
A0-A7
Input data
Write and erase with protect bit
(1)
1
0
0
0
1
1
A8 A9
A0-A7
Input data
Write protect bit with data comparison
(1)
0
0
0
0
1
1
A8 A9
A0-A7
Compare data
Additional Commands for IS23SC4428 only
(3)
Write Error Counter
0
1
0
0
1
1
1
1
FDH
Bit Mask
Verify first PSC byte
1
0
1
1
0
0
1
1
FEH
PSC byte 1
Verify second PSC byte
1
0
1
1
0
0
1
1
FFH
PSC byte 2
Write and erase first PSC byte
without protect bit
(2)
1
1
0
0
1
1
1
1
FEH
PSC byte 1
Write and erase second PSC byte
without protect bit
(2)
1
1
0
0
1
1
1
1
FFH
PSC byte 2
Write and erase first PSC byte
with protect bit
(2)
1
0
0
0
1
1
1
1
FEH
PSC byte 1
Write and erase second PSC byte
with protect bit
(2)
1
0
0
0
1
1
1
1
FFH
PSC byte 2
Read 8-bits first PSC byte
without protect bit
(2)
0
1
1
1
0
0
1
1
FEH
Don't Care
Read 8-bits second PSC byte
without protect bit
0
1
1
1
0
0
1
1
FFH
Don't Care
Read 9-bits first PSC byte
with protect bit
0
0
1
1
0
0
1
1
FEH
Don't Care
Read 9-bits second PSC byte
with protect bit
0
0
1
1
0
0
1
1
FFH
Don't Care
Notes:
1. If the protect bit of the byte address is enabled, the write command will have no effect on the byte content.
2. If the protect bit of the PSC byte is enabled, the write command will have no effect on the PSC byte.
3. For IS23SC4428, locations (1021-1023) are occupied by Error Counter and PSC codes and thus cannot be used for general
data storage.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IS23SC4428-X2 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:EEPROM |
| IS23SC4428-X2I | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:EEPROM |
| IS23SC4428-X3 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:EEPROM |
| IS23SC4428-X3I | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:EEPROM |
| IS23SC4428-X4 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:EEPROM |
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