| Компонент | Описание | Производитель | |
| 54F191FM | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |
|
| 54F191FMQB | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |
|
| 54F191FMX | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |
|
| 74F191FMQB | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |
|
| 74F191FMX | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |