This document describes the features and characteristics of Oxford Semiconductor's products, including single full-duplex asynchronous channel, 128-byte deep transmitter/receiver FIFO, full software compatibility with 16C550 type UARTs, etc.
The OX16C950 rev B is a single‑channel ultra‑high performance UART offering data rates up to 15 Mbps (60 Mbps with an external 1× clock) and 128‑byte deep transmit/receive FIFOs. It is fully software compatible with standard 16C550‑type devices and pin‑compatible with TL16C550, ST16C650 and TL16C750 parts.
The document provides a performance comparison, block diagram, pin information, mode selection, register description tables, reset configuration, FIFO control, flow‑control features, baud‑rate generation, additional status registers, electrical characteristics, package details and ordering information.
| Maximum baud rate (normal mode) | 15 Mbps |
|---|---|
| Maximum baud rate (1× clock mode) | 60 Mbps |
| FIFO depth | 128 bytes |
| Sleep mode | Yes |
| Automatic Xon/Xoff flow control | Yes |
| Automatic CTS/RTS flow control | Yes |
| Automatic DSR/DTR flow control | Yes |
| Number of Rx interrupt thresholds | 127 |
| Number of Tx interrupt thresholds | 128 |
Both the transmit and receive FIFOs are 128 bytes deep.
Yes, the device includes a sleep mode to reduce operating current.