SN74LS569N и другие
| Компонент | Описание | Производитель | |
| SN74LS569ADW | 4-bit up/down counter with 3-state outputs |
Motorola, Inc |
 |
| SN74LS569AN | 4-bit up/down counter with 3-state outputs |
Motorola, Inc |
|
| SN74LS569DW | FOUR-BIT UP/DOWN COUNTER WITH THREE-STATE OUTPUTS |
Motorola, Inc |
|
| SN74LS569N | FOUR-BIT UP/DOWN COUNTER WITH THREE-STATE OUTPUTS |
Motorola, Inc |
|