EXAR  XR16M654IV64-F  UART Interface, 4 Channel, 16 Mbps, 1.62 V, 3.63 V, LQFP, 64 Pins

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Product Overview

The XR16M654IV64-F is an enhanced quad Universal Asynchronous Receiver and Transmitter (UART) each with 64-bytes of transmit and receive FIFOs, programmable transmit and receive FIFO trigger levels, automatic hardware and software flow control and data rates of up to 16Mbps at 4X sampling rate. Each UART has a set of registers that provide the user with operating status and control, receiver error indications and modem serial interface controls. An internal loopback capability allows onboard diagnostics. The XR16M654IV (64-pin) offers three state interrupt output. The rich feature set of the M654 is available through the internal registers. Automatic hardware/software flow control, selectable transmit and receive FIFO trigger levels, selectable baud rates, infrared encoder/decoder interface, modem interface controls and a sleep mode are all standard features. MCR bit-5 provides a facility for turning off (Xon) software flow control with any incoming (RX) character.
  • Intel or Motorola data bus interface select
  • Register set compatible to 16C550
  • Data rates of up to 16Mbps
  • 64-byte Transmit FIFO
  • 64-byte Receive FIFO with error tags
  • 4 Selectable TX and RX FIFO trigger levels
  • Automatic hardware (RTS/CTS) flow control
  • Automatic software (Xon/Xoff) flow control
  • Programmable Xon/Xoff characters
  • Wireless infrared (IrDA 1.0) encoder/decoder
  • Full modem interface
  • Sleep mode with automatic wake-up
  • Crystal oscillator or external clock input


Product Information

No. of Channels:
4 Channel
Data Rate:
Supply Voltage Min:
Supply Voltage Max:
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No. of Pins:
Operating Temperature Min:
Operating Temperature Max:
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To Be Advised

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