| ST16C454 | Exar | Quad UART with a Dual Foot Print Interface |
| ST16C550 | Exar | UART With 16-Byte FIFOs |
| ST16C552 | Exar | Dual UART With 16-Byte FIFO and Parallel Printer Port |
| ST16C552A | Exar | Dual UART With 16-Byte FIFO and Parallel Printer Port |
| ST16C554 | Exar | Quad UART with 16-Byte FIFOs |
| ST16C554D | Exar | Quad UART with 16-Byte FIFOs |
| ST16C580 | Exar | UART with 16-Byte FIFOs and Infrared (IrDA) Encoder/Decoder |
| ST16C650A | Exar | UART with 32-Byte FIFOs and Infrared (IrDA) Encoder/Decoder |
| ST16C654 | Exar | Quad UART with 64-Byte FIFO and Infrared (IrDA) Encoder/Decoder |
| ST16C654D | Exar | Quad UART with 64-Byte FIFO and Infrared (IrDA) Encoder/Decoder |
| ST68C554 | Exar | Quad UART with 16-Byte FIFOs |
| XR16C2850 | Exar | Dual UART with TX and RX FIFO Counters, 128 Bytes of FIFOs and Automatic RS-485 Half Duplex Control |
| XR16C2852 | Exar | Dual UART with TX and RX FIFO Counters, 128 Bytes of FIFOs and Automatic RS-485 Half Duplex Control |
| XR16C850 | Exar | UART with 128-Byte FIFOs and Infrared (IrDA) Encoder/Decoder |
| XR16C854 | Exar | Quad UART with RX/TX FIFO Counters and 128-Byte FIFO |
| XR16C854D | Exar | Quad UART with RX/TX FIFO Counters and 128-Byte FIFO |
| XR16C864 | Exar | Quad UART with RX/TX FIFO Counters and 128-Byte FIFO |
| XR16C872 | Exar | Dual UART with 1284 Parallel Port and Plug-and-Play Controller |
| XR16L2450 | Exar | Industry Smallest Package UART with 2.25V to 5.5V Operation |
| XR16L2550 | Exar | Industry Smallest Package UART with 2.25V to 5.5V Operation |