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參數(shù)資料
| 型號： | HN58C256AP-85 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 256k EEPROM (32-kword x 8-bit) Ready/Busy and RES function (HN58C257A) |
| 中文描述： | 256k的EEPROM（32 KWord的× 8位）就緒/忙和RES功能（HN58C257A） |
| 文件頁數(shù)： | 20/25頁 |
| 文件大?。?/td> | 126K |
| 代理商： | HN58C256AP-85 |
HN58C256A Series, HN58C257A Series
20
3. Software data protection
To prevent unintentional programming, this device has the software data protection (SDP) mode. The SDP is
enabled by inputting the following 3 bytes code and write data. SDP is not enabled if only the 3 bytes code is
input. To program data in the SDP enable mode, 3 bytes code must be input before write data.
Data
AA
↓
55
↓
A0
↓
Write data }
Address
5555
↓
2AAA
↓
5555
↓
Write address
Normal data input
The SDP mode is disabled by inputting the following 6 bytes code. Note that, if data is input in the SDP
disable cycle, data can not be written.
Data
AA
↓
55
↓
80
↓
AA
↓
55
↓
20
Address
5555
↓
2AAA
↓
5555
↓
5555
↓
2AAA
↓
5555
The software data protection is not enabled at the shipment.
Note:
There are some differences between Hitachi’s and other company’s for enable/disable sequence of
software data protection. If there are any questions , please contact with Hitachi sales offices.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HN58C256AP85E | 制造商:Renesas Electronics 功能描述:Tray 制造商:Renesas Electronics 功能描述:Parallel 制造商:Renesas Electronics 功能描述:Parallel Bulk 制造商:Renesas Electronics Corporation 功能描述:EEPROM PARALLEL 256K 58C256 DIP28 制造商:Renesas Electronics Corporation 功能描述:EEPROM,Parallel,256K,5.0V,85ns,DIP28 制造商:Renesas 功能描述:EEPROM Parallel 256K-bit 32K x 8 5V 28-Pin PDIP Tube |
| HN58C256AP-85E | 制造商:Renesas 功能描述:EEPROM Parallel 256K-bit 32K x 8 5V 28-Pin PDIP Tube |
| HN58C256ASERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EEPROM |
| HN58C256ASERIESHN58C257ASERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HN58C256AT-10 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:256k EEPROM (32-kword x 8-bit) Ready/Busy and RES function (HN58C257A) |
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