| Компонент | Описание | Производитель | |
| DM54191J | Synchronous Up/Down 4-Bit Binary Counter with Mode Control |
National Semiconductor |
|
| DM54191MW8 | Synchronous Up/Down 4-Bit Binary Counter with Mode Control [Preliminary] |
National Semiconductor |
|
| DM54191W | Synchronous Up/Down 4-Bit Binary Counter with Mode Control |
National Semiconductor |