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參數(shù)資料
| 型號： | HN58V256AT-12 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 256k EEPROM (32-kword x 8-bit) Ready/Busy and RES function (HN58V257A) |
| 中文描述： | 256k的EEPROM（32 KWord的× 8位）就緒/忙和RES功能（HN58V257A） |
| 文件頁數(shù)： | 20/24頁 |
| 文件大小： | 118K |
| 代理商： | HN58V256AT-12 |
HN58V256A Series, HN58V257A 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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HN58V257AT-12 | 256k EEPROM (32-kword x 8-bit) Ready/Busy and RES function (HN58V257A) |
| HN58V257A | 256k EEPROM (32-kword ×8-bit)(256k EEPROM (32k字 ×8位)) |
| HN58V65AI | 64 k EEPROM (8-kword ×8-bit)(64 k EEPROM (8k字 ×8位)) |
| HN58V66AI | 64 k EEPROM (8-kword ×8-bit)(64 k EEPROM (8k字 ×8位)) |
| HN58V65AP-10 | 64 k EEPROM (8-kword x 8-bit) Ready/Busy function, RES function (HN58V66A) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HN58V256AT-12E | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:256k EEPROM (32-kword × 8-bit) Ready/Busy and RES function (HN58V257A) |
| HN58V256ATI-12 | 制造商:Renesas Electronics 功能描述:N/R Parallel Bulk |
| HN58V256ATI12E | 制造商:Renesas Electronics Corporation 功能描述:EEPROM,Parallel,256K,3V,120ns,TSOP28 制造商:Renesas 功能描述:EEPROM Parallel 256K-bit 32K x 8 3.3V/5V 28-Pin TSOP Tray |
| HN58V257A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EEPROM |
| HN58V257ASERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EEPROM |
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