| Компонент | Описание | Производитель | |
| DS78LS120 | Dual Differential Line Receiver (Noise Filtering and Fail-Safe) |
National Semiconductor |
|
| DS78LS120J/883 | Dual Differential Line Receiver (Noise Filtering and Fail-Safe) |
National Semiconductor |
|
| DS78LS120W/883 | Dual Differential Line Receiver (Noise Filtering and Fail-Safe) |
National Semiconductor |