| Manufacturer | Part Number | Description |
|---|---|---|
Hitachi Semiconductor |
58C256 | HN58C256 |
Hitachi Semiconductor |
HN58C256 | EEPROM CMOS |
| ETC Unknown Manufacturer | HN58C256P-20 | CMOS 256K EEPROM |
|
Hitachi Semiconductor |
HN58C256A | 256k EEPROM (32-kword x 8-bit) Ready/Busy and RES function |