| Компонент | Описание | Производитель | |
| DM54193 | Synchronous Up/Down 4-Bit Binary Counter with Dual Clock |
National Semiconductor |
|
| DM54193J | Synchronous Up/Down 4-Bit Binary Counter with Dual Clock |
National Semiconductor |
|
| DM54193W | Synchronous Up/Down 4-Bit Binary Counter with Dual Clock |
National Semiconductor |