| Type | Integrated Circuit | |
| Case | DIP28 | |
| Manufacturer | WDC | |
| No. of I/O Lines | 12 | |
| I/O Line Types | Gen. Purp. | |
| Max. Inst. Len (bits) | 16 | |
| Min Inst. Len (bits) | 8 | |
| fClk Max. (Hz) | 4.0M | |
| fClk Min (Hz) | 400k | |
| No. of I/O Ports | 2 | |
| On-Chip ROM (bytes) | 1k | |
| Nom. Supp Volt | 5.0 | |
| Tech. | NMOS Integrated Circuit | |
| On-Chip RAM (Bytes) | 256 | |
| Oper. Temp (°C) Min | -25 | |
| Oper. Temp (°C) Max. | 85 | |
| Pinout Equivalence Number | 28-240 | |
| No. of Pins | 28 | |
| Surface Mounted Yes/No | NO | |
| SKU | 1126054 | |