PCI Express Mini High Performance 8-channel UART With Programmable Transceiver

ALPHI Technology Corporation

PCIe-Mini-COM-8The PCIe-Mini-COM-8 is an 8-channel PCI Express (PCIe) Mini UART (Universal Asynchronous Receiver and Transmitter) optimized for higher performance. The PCIe‑Mini‑COM‑8 serves as a single lane PCIe bridge to 8 independent enhanced 16550 compatible UARTs.

All 8 channels can be programmed in pairs with the required front-end interface:
Software selectable RS-232, RS-485 and RS-422;
Software selectable 120Ω termination for RS-422 and RS-485 interfaces.
Programmable data rates go up to 31.25Mb/s per channel for all channels.

PCIe-Mini-COM-8 features include:

•  8 independent 16C550-class UARTs
•  256-bytes TX and RX FIFOs
•  Up to 31.25Mbps serial data rate per channel
•  Fractional baud rate generator
•  Selectable serial mode in pairs, RS-232, RS-485 and RS-422
•  Robust ±15KV ESD protection (IEC 61000-4-2 air gap)
•  Up to 16 drivers, 16 receivers, RS-232/V.28
•  Up to 8 drivers, 8 receivers, RS-485/RS-422
•  Full or half duplex configurations
•  1/8th unit load, up to 256 receivers on mixed RS-232/RS-485 modes
•  On board termination 120Ω, software selectable
•  Automatic RTS/CTS or DTR/DSR hardware flow control software

This board is optimally suited for communications gateway and protocol converters. This is a perfect solution for:

•  Avionics equipment
•  Avionic data communication systems
•  Medical systems
•  Industrial controls
•  Factory automation and process control

Communication Specifications

•  PCIe 2.0 Gen 1 compliant
•  16550 compatible register set
•  256-byte TX and RX FIFOs
•  Global interrupt status register for all eight UARTs
•  Up to 31.25Mbps serial data rate
•  Automatic RTS/CTS or DTR/DSR hardware flow control
•  Automatic Xon/Xoff software flow control
•  RS-485 half duplex direction control output with programmable turn-around delay

I/O Specifications

•  ±15KV ESD protection (IEC 61000-4-2 air gap)
•  Supports RS-232, RS-485 and RS-422
•  Full or half duplex
•  Mixed RS-232/RS-485 modes
•  RS-485 advanced fail safe on open, short or terminated lines
•  Multi-port RS-232/RS-422/RS-485 cards


•  Size: Mini PCIe Module (30mm x 50.95mm)
•  Front panel I/O
•  Vibration: 0.5G, 20-2000Hz rand
•  Shock: 20G, 11msec, ½ sine
•  MTBF: >250,000 hours

Operating Environment

•  Operating temperature
•  Industrial: -40°C to +85°C
•  Non-operating: -60°C to +120°C
•  Humidity: 5 to 90% (non-condensing)
•  Altitude: 0 to 10,000 feet

Available software: Windows®, ® and VxWorks® drivers, and C library dll’s.

Link to PCIe-Mini-COM-8 data sheetwww.alphitech.com/doc/PCIe-Mini-com-8.pdf



Alphi Technology Corporation
1898 E. Southern Ave, Tempe AZ 85282

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