This document is the datasheet for OXmPCI952 by Oxford Semiconductor Ltd. The product features dual 16C950 high-performance UART channels, 8-bit pass-through local bus (PCI bridge), IEEE1284 compliant SPP/EPP/ECP parallel port, etc.
The OXmPCI952 is a single‑chip PCI/miniPCI device that provides two high‑performance OX16C950 UARTs and an 8‑bit Local Bus or bi‑directional IEEE‑1284 parallel port. It supports 3.3 V operation with 5 V tolerance on selected I/Os and includes 11 multi‑purpose I/O pins for flexible configuration.
Key features include up to 15 Mbps (normal) or 60 Mbps (external 1× clock) UART data rates, 128‑byte deep FIFOs, extensive flow‑control options, power‑management compliance, and availability in 160‑pin LQFP or 176‑pin BGA packages. The datasheet provides detailed register maps, timing diagrams, and ordering information.
| UART channels | Dual 16C950 |
|---|---|
| FIFO depth | 128 bytes per transmitter and receiver |
| Maximum baud rate | 15 Mbps normal, 60 Mbps external 1× clock |
| Operating temperature range | -40 °C to 105 °C |
| Package options | 160‑pin LQFP, 176‑pin BGA |
| Supply voltage | 3.3 V (5 V tolerant on selected I/Os) |
| Multi‑purpose I/O pins | 11 pins |
The device supports up to 15 Mbps in normal mode and up to 60 Mbps with an external 1× clock.
It provides two high‑performance OX16C950 UART channels.
The chip is offered in 160‑pin LQFP and 176‑pin BGA packages.
It operates from –40 °C up to 105 °C.