UART Models
| Model | Description |
|---|---|
| EXAR XR21V1410 | |
| Intersil 6402 | |
| CDP 1854 (RCA, now Intersil) | |
| Zilog Z8440 | 2000 kbit/s. Async, Bisync, SDLC, HDLC, X.25. CRC. 4-byte RX buffer. 2-byte TX buffer. DMA. |
| 8250 | Obsolete with 1-byte buffers |
| 8251 | |
| 8530/85C30 | |
| Motorola 6850 | |
| 6522 | |
| 6551 | |
| Rockwell 65C52 | |
| 16450 | |
| 16550 | |
| 16550A | 16-byte buffers, TL=1,4,8,14; 115.2 kbit/s standard, many support 230.4 or 460.8 kbit/s. DMA-mode. |
| 16C552 | |
| 16650 | 32-byte buffers. 460.8 kbit/s. |
| 16750 | 64-byte buffer for send, 56-byte for receive. 921.6 kbit/s. |
| 16850 | 128-byte buffers. 460.8 kbit/s or 1500 kbit/s. |
| 16C850 | |
| 16950 | |
| Zilog Z85230 | |
| Hayes ESP | 1 kB buffers, 921.6 kbit/s, 8-ports. |
Read more about this topic: Universal Asynchronous Receiver/transmitter
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