XR17V252 66 MHZ PCI Bus Dual UART With Power Management Support

The XR17V252 is a single chip 8-channel 66MHz PCI (Peripheral Component Interconnect) UART (Universal Asynchronous Receiver and Transmitter) solution, optimized for higher performance and lower power. The V258 device with its fifth generation register set is designed to meet the high bandwidth and power management requirements for multi-serial communication ports for system administration and management. The 32-bit 66MHz PCI interface is compliant with PCI 3.0 and PCI power management revision 1.1 specifications. The device provides an upgrade path for Exar’s 33MHz 5V and Universal PCI UART family of products in a 144-pin LQFP package. The V258 consists of eight independent UART channels, each with set of configuration and enhanced registers, 64 bytes of Transmit (TX) and Receive (RX) FIFOs, and a fractional Baud Rate Generator (BRG). A global interrupt source register provides a complete interrupt status indication for all 8-channels to speed up interrupt parsing. The V258 device operates at 33/66MHz and features fully programmable TX and RX FIFO level triggers, automatic hardware and software flow control, and automatic RS-485 half duplex direction control output for software and hardware design simplification.

技术特性
  • High performance 32-bit 66MHz PCI UART
  • PCI 3.0 compliance
  • PCI power management rev. 1.1 compliance
  • 3.3V supply with 5V tolerant non-PCI (serial) inputs
  • Up to 8 Mbps serial data rate
  • A 16-bit general purpose timer/counter
  • Pb-Free, RoHS Compliant Versions Offered
应用领域 APPLICATION
  • Remote Access Servers
  • Storage Network Management
  • Factory Automation and Process Control
  • Instrumentation
  • Multi-port RS-232/RS-422/RS-485 Cards
  • Point-of-Sale Systems
订购信息 Ordering Information
器件型号 封装编码 有害物质限制 最低温度 最高温度 状态 立刻购买 申请样片
XR17V252IV-F LQFP144 -40 85 Active
XR17V252IVTR-F LQFP144 -40 85 Active

 

技术指标
中央处理器接口 PCI Bus 3.0
频道 2
数据传输速率@5/3.3/2.5V na/8/na
Max Data Rate @ 5/3.3/2.5/1.8V (Mbps) na/8/na/na
发送器/接收器FIFO(Bytes) 64/64
发送器/接收器FIFOCtrs Yes
Program Trigger Levels Yes
自动RS-485 Yes
Fractional Baud Rate Gen. Yes
Pwr Down Mode Yes
5VTol输入 Yes
电压供应 3.0-3.6
No. ofGPIOs 8
封装 TQFP-100
功能框图 Functional Block Diagram

XR17V252 功能框图

应用技术支持与电子电路设计开发资源下载 版本信息 大小
XR17V252 数据资料DataSheet下载:pdf Rev.V2 2 页