| Компонент | Описание | Производитель | |
| KK4520B | Dual Up-Counter High-Voltage Silicon-Gate CMOS |
KODENSHI KOREA CORP. |
|
| KK4520BD | Dual Up-Counter High-Voltage Silicon-Gate CMOS |
KODENSHI KOREA CORP. |
|
| KK4520BN | Dual Up-Counter High-Voltage Silicon-Gate CMOS |
KODENSHI KOREA CORP. |