| Компонент | Описание | Производитель | |
| DM74AS27 | Triple 3-Input NOR Gate |
Fairchild Semiconductor |
|
| DM74AS27M | Triple 3-Input NOR Gate |
Fairchild Semiconductor |
|
| DM74AS27MX | Triple 3-Input NOR Gate |
Fairchild Semiconductor |
|
| DM74AS27N | Triple 3-Input NOR Gate |
Fairchild Semiconductor |