This data sheet introduces the features and characteristics of OX16PCI958 Octal UART with PCI Interface
The OX16PCI958 from Oxford Semiconductor provides eight 16C550‑compatible UART channels on a PCI bus. It is designed for both RS232 and RS422 applications and can be accessed via I/O or memory‑mapped interfaces.
Key features include up to 4.125 Mega‑baud rates using a 16.5 MHz clock, 32‑byte deep FIFO per channel, support for 5.0‑V and 3.3‑V PCI signalling, and compliance with PCI specifications 2.1‑3.0 and PCI Power Management 1.1. The device is packaged in a 160‑pin QFP and operates from 0 °C to 70 °C.
| Operating temperature range | 0°C–70°C |
|---|---|
| Maximum baud rate | 4.125 Mega‑baud (16.5 MHz input clock) |
| FIFO depth per channel | 32 bytes |
| Package type | 160‑pin QFP |
| PCI signalling voltage | 5.0 V and 3.3 V |
| PCI specification compliance | PCI 2.1, 2.2, 2.3 & 3.0 |
It contains eight UARTs.
Up to 4.125 Mega‑baud using a 16.5 MHz input clock.
It complies with PCI revisions 2.1, 2.2, 2.3 and 3.0, and PCI Power Management 1.1.
Both 5.0 V and 3.3 V PCI signalling are supported.