| N82C54 | 8MHz CHMOS programmable interval timer in 28-pin PLCC package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| N82C54-2 | 10MHz CHMOS programmable interval timer in 28-pin PLCC package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| P82C54 | 8MHz CHMOS programmable interval timer in 24-pin DIP package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| P82C54-2 | 10MHz CHMOS programmable interval timer in 24-pin DIP package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| TN82C54 | 8MHz CHMOS programmable interval timer in 28-pin PLCC package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| TN82C54-2 | 10MHz CHMOS programmable interval timer in 28-pin PLCC package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| TP82C54 | 8MHz CHMOS programmable interval timer in 24-pin DIP package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| TP82C54-2 | 10MHz CHMOS programmable interval timer in 24-pin DIP package. Operational temperature range from -40°C to 85°C. | Datasheet*) |