| Компонент | Описание | Производитель | |
| 54F191LM | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |
|
| 54F191LMQB | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |
|
| 54F191LMX | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |
|
| 74F191LMQB | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |
|
| 74F191LMX | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |