XR16V2751 High Performance DUART with 64-byte FIFO and Powersave Feature

The XR16V27511 (V2751) is a high performance dual universal asynchronous receiver and transmitter (UART) with 64 byte TX and RX FIFOs. The device operates from 2.25 to 3.6 volts with 5 Volt tolerant inputs and is pin-to-pin and software compatible to Exar's XR16L2751. The device includes 2 additional capabilities over the XR16V2750: Intel and Motorola data bus selection and a "PowerSave" mode to further reduce sleep current to a minimum during sleep mode. It supports the Exar's enhanced features of programmable FIFO trigger level and FIFO level counters, automatic hardware (RTS/CTS) and software flow control, automatic RS-485 half duplex direction control output and a complete modem interface. An internal loopback capability allows system diagnostics. Independent programmable fractional baud rate generators are provided in each channel to select data rates up to 8 Mbps at 3.3 Volt and 8X sampling clock. The V2751 is available in a 48-pin TQFP package

技术特性
  • 2.25 to 3.6 Volt Operation
  • 5 Volt Tolerant Inputs
  • Pin-to-pin compatible to Exar's XR16L2751 in the 48-TQFP package
  • Two independent UART channels
    • Register set identical to 16L2751
    • Data rate of up to 8 Mbps at at 3.3 V, and 4 Mbps at 2.5 V with 8X sampling rate
    • Fractional Baud Rate Generator
    • Transmit and Receive FIFOs of 64 bytes
    • Programmable TX and RX FIFO Trigger Levels
    • Transmit and Receive FIFO Level Counters
    • Automatic Hardware (RTS/CTS) Flow Control
    • Selectable Auto RTS Flow Control Hysteresis
    • Automatic Software (Xon/Xoff) Flow Control
    • Automatic RS-485 Half-duplex Direction Control Output via RTS#
    • Wireless Infrared (IrDA 1.0) Encoder/Decoder
    • Automatic sleep mode with wake-up interrupt
    • Full modem interface
    • PowerSave Feature reduces sleep current to 15 µA
    • Device Identification and Revision
    • Crystal oscillator (up to 32MHz) or external clock (upto 64MHz) input
    • 48-TQFP package
    • Pb-Free, RoHS Compliant Versions Offered
订购信息 Ordering Information
器件型号 有害物质限制 最低温度 最高温度 状态 立刻购买 申请样片
XR16V2751IM-F -40 85 Active
XR16V2751IMTR-F -40 85 Active
技术指标
中央处理器接口 Intel or Motorola
频道 2
数据传输速率@5/3.3/2.5V na/8/6.25
Max Data Rate @ 5/3.3/2.5/1.8V (Mbps) na/8/6.25/na
发送器/接收器FIFO(Bytes) 64/64
发送器/接收器FIFOCtrs Yes
发送器/接收器FIFOINT Trig Program/ Program
自动RTS/CTS Yes
IrDa供应 Yes
5VTol输入 Yes
电压供应 2.25-3.6
封装 TQFP-48
应用领域 APPLICATION
  • Portable Appliances
  • Telecommunication Network Routers
  • Ethernet Network Routers
  • Cellular Data Devices
  • Factory Automation and Process Controls
功能框图 Functional Block Diagram

XR16V2751 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
XR16V2751 数据资料DataSheet下载:pdf Rev.V2 2 页