| Компонент | Описание | Производитель | |
| NS16C552 | PC16552D Dual Universal Asynchronous Receiver/Transmitter with FIFOs |
Texas Instruments |
|
| PC16552D | Dual Universal Asynchronous Receiver/Transmitter with FIFOs |
National Semiconductor |
|
| PC16552DV | Dual Universal Asynchronous Receiver/Transmitter with FIFOs |
National Semiconductor |