DM74LS197M и другие
| Компонент | Описание | Производитель | |
| DM74LS197 | Presettable Binary Counters |
National Semiconductor |
 |
| DM74LS197M | Presettable Binary Counters |
National Semiconductor |
|
| DM74LS197N | Presettable Binary Counters |
National Semiconductor |
|