| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | 54ACT161 |  192Kb/12P | Synchronous Presettable Binary Counter |
| 54ACT161D |  192Kb/12P | Synchronous Presettable Binary Counter |
| 54ACT161F |  192Kb/12P | Synchronous Presettable Binary Counter |
| 54ACT161L |  192Kb/12P | Synchronous Presettable Binary Counter |
 National Semiconductor ... | 54ACT161D |  192Kb/12P | Synchronous Presettable Binary Counter |
| 54ACT161F |  192Kb/12P | Synchronous Presettable Binary Counter |
| 54ACT161L |  192Kb/12P | Synchronous Presettable Binary Counter |
 National Semiconductor ... | 54ACT163D |  190Kb/12P | Synchronous Presettable Binary Counter |
| 54ACT163F |  190Kb/12P | Synchronous Presettable Binary Counter |
| 54ACT163L |  190Kb/12P | Synchronous Presettable Binary Counter |