| Компонент | Описание | Производитель | |
| 74ACT11191 | SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTER |
Texas Instruments |
|
| 74ACT11191D | 5 V, asynchronous presettable synchronous 4-bit binary up/down counter with single clock |
NXP Semiconductors |
|
| 74ACT11191N | 5 V, asynchronous presettable synchronous 4-bit binary up/down counter with single clock |
NXP Semiconductors |