Exar – XR22804 Highly Integrated USB-Ethernet Bridge

Exar_October2014_pg10Exar-logo
Connectivity from a Single USB Port to 10/100 Ethernet, UART, I2C, and EDGE GPIO

Features

  • Integrated 480Mbps USB 2.0 PHY
  • Integrated 10/100 Ethernet MAC and PHY
  • UART Data Rates up to 15Mbps
  • Auto RS-485 Half-Duplex Control I2C Multi-Master
  • Enhanced Dedicated GPIO Entity (EDGE)
  • ±15kV HBM ESD Protection (USB)
  • Parallel GPIO access
Applications

  • POS Terminals
  • Docking Stations for Handheld Devices
  • USB Dongles
  • Port Expanders for Microcontrollers
  • Industrial Controls
  • Medical Diagnostics

Exar_October2014_pg10b

Part NumberCPU InterfaceEthernet MAC/PHY (Mbps)UART ChannelsUART Max Data Rate (Mbps)UART Tx/RX FIFO (Bytes)Auto RS-485 Half-Duplex ControlNo. of GPIOs (Max)I2C MasterSupply VoltagePackage
XR22800 USB 2.0 10/100 0 15 1024/1024 8 4.4 - 5.25 QFN-32
XR22801 USB 2.0 10/100 1 15 1024/1024 8 4.4 - 5.25 QFN-32
XR22802 USB 2.0 10/100 2 15 1024/1024 32 4.4 - 5.25 QFN-56
XR22804 USB 2.0 10/100 4 15 1024/1024 32 4.4 - 5.25 QFN-56

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