SL74HC193N и другие
| Компонент | Описание | Производитель | |
| SL74HC193 | Presettable 4-Bit Binary UP/DOWN Counter |
System Logic Semiconductor |
 |
| SL74HC193D | Presettable 4-Bit Binary UP/DOWN Counter |
System Logic Semiconductor |
|
| SL74HC193N | Presettable 4-Bit Binary UP/DOWN Counter |
System Logic Semiconductor |
|