PC16550 系列
| 製造商。 部分# | 描述 | 製造商 | 有現貨的 | 行動 |
| PC16550DVX | SERIAL I/O CONTROLLER, 1 CHANNEL | National Semiconductor | 4422 |
|
| PC16550DV | SERIAL I/O CONTROLLER, 1 CHANNEL | National Semiconductor | 9151 |
|
| PC16550DV/NOPB | IC UART WITH FIFO 44-PLCC | Texas Instruments | 778 |
|
| PC16550DVX/NOPB | PC16550D UNIVERSAL ASYNCHRONOUS | National Semiconductor | 4463 |
|
| PC16550DN/NOPB | IC UART WITH FIFO 40-DIP | Texas Instruments | 402 |
|