| Type | Integrated Circuit | |
| Case | DIP24 | |
| Manufacturer | National Semiconductor - NSC | |
| fClk Max. (Hz) | 400k | |
| Nom. Supp Volt | 9 | |
| Tech. | MOSPEC Semiconductor | |
| µP Family | 400 | |
| Oper. Temp (°C) Min | 0 | |
| Oper. Temp (°C) Max. | 70 | |
| Pinout Equivalence Number | 28-309 | |
| Descript | Number Oriented Processor | |
| No. of Pins | 28 | |
| Surface Mounted Yes/No | NO | |
| SKU | 385232 | |