DM74197 и другие
| Компонент | Описание | Производитель | |
| DM74191 | Synchronous Up/Down 4-Bit Binary Counter with Mode Control |
National Semiconductor |
 |
| DM74191N | Synchronous Up/Down 4-Bit Binary Counter with Mode Control |
National Semiconductor |
|
| DM74197 | PRESETTABLE BINARY COUNTERS |
National Semiconductor |
|
| DM74197N | PRESETTABLE BINARY COUNTERS |
National Semiconductor |
|