SNJ54HC191W и другие
| Компонент | Описание | Производитель | |
| SNJ54HC191FK | 4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS |
Texas Instruments |
 |
| SNJ54HC191J | 4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS |
Texas Instruments |
|
| SNJ54HC191W | 4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS |
Texas Instruments |
|