| Type | Integrated Circuit | |
| Case | DIP28 | |
| Manufacturer | Motorola Semiconductor | |
| Mem. Addr Rnge | 4k | |
| No.of Addr. Modes | 10 | |
| No. of I/O Lines | 21 | |
| I/O Line Types | Ser/Parall | |
| Max. Inst. Len (bits) | 24 | |
| Min Inst. Len (bits) | 8 | |
| No. of Intrpt Lines | 2 | |
| Intrpt Types | Prty/Ext V | |
| No. of Intrpt (mask) | 2 | |
| fClk Max. (Hz) | 4.2M | |
| fClk Min (Hz) | 0.4M | |
| No. of I/O Ports | 4 | |
| On-Chip ROM (bytes) | 3.6k | |
| Nom. Supp Volt | 5.25 | |
| Tech. | NMOS Integrated Circuit | |
| On-Chip RAM (Bytes) | 104 | |
| Oper. Temp (°C) Min | -40 | |
| Oper. Temp (°C) Max. | 105 | |
| Pinout Equivalence Number | 28-481 | |
| Descript | Memory Mapped I/O;7-Bit Timer | |
| No. of Pins | 28 | |
| Surface Mounted Yes/No | NO | |
| SKU | 672672 | |