| Компонент | Описание | Производитель | |
| SCL4049UB | INVERTING HES BUFFER |
R & E International, Inc. |
|
| SL4049B | Hex Buffer/Converter |
System Logic Semiconductor |
|
| SL4049BD | Hex Buffer/Converter |
System Logic Semiconductor |
|
| SL4049BN | Hex Buffer/Converter |
System Logic Semiconductor |