| Компонент | Описание | Производитель | |
| HCF4520B | DUAL BINARY UP COUNTER |
STMicroelectronics |
|
| HCF4520B | DUAL UP-COUNTERS |
STMicroelectronics |
|
| HCF4520BEY | DUAL BINARY UP COUNTER |
STMicroelectronics |
|
| HCF4520BM1 | DUAL BINARY UP COUNTER |
STMicroelectronics |
|
| HCF4520M013TR | DUAL BINARY UP COUNTER |
STMicroelectronics |