| Компонент | Описание | Производитель | |
| HEF4522 | Programmable 4-bit BCD down counter |
NXP Semiconductors |
|
| HEF4522B | Programmable 4-bit BCD down counter |
NXP Semiconductors |
|
| HEF4522BD | Programmable 4-bit BCD down counter |
NXP Semiconductors |
|
| HEF4522BF | Programmable 4-bit BCD down counter |
NXP Semiconductors |
|
| HEF4522BN | Programmable 4-bit BCD down counter |
NXP Semiconductors |
|
| HEF4522BP | Programmable 4-bit BCD down counter |
NXP Semiconductors |
|
| HEF4522BT | Programmable 4-bit BCD down counter |
NXP Semiconductors |