| Компонент | Описание | Производитель | |
| 54F191PCQB | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |
|
| 54F191PCX | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |
|
| 74F191PC | Up/Down Binary Counter with Preset and Ripple Clock |
Fairchild Semiconductor |
|
| 74F191PC | Up/Down Binary Counter with Preset and Ripple Clock |
Fairchild Semiconductor |
|
| 74F191PC | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |
|
| 74F191PCQB | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |
|
| 74F191PCX | Up/Down Binary Counter with Preset and Ripple Clock |
National Semiconductor |