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XR16M681 - 1.62V TO 3.63V UART

General Description

The XR16M6811 (M681) is an enhanced Universal Asynchronous Receiver and Transmitter (UART) with a VLIO bus interface and has 32 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 20 Mbps at

Key Features

  • VLIO bus interface.
  • Pin-to-pin compatible with SC16C850V and SC16C850SV in 32-QFN package.
  • 20 Mbps maximum data rate.
  • Programmable TX/RX FIFO Trigger Levels.
  • TX/RX FIFO Level Counters.
  • Independent TX/RX Baud Rate Generator.
  • Fractional Baud Rate Generator.
  • Auto RTS/CTS Hardware Flow Control.
  • Auto XON/XOFF Software Flow Control.
  • Auto RS-485 Half-Duplex Direction Control.
  • Multidrop mode w/ Auto Addre.

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Other Datasheets by Exar (now MaxLinear)

Part Number Description
XR16M680 1.62V TO 3.63V HIGH PERFORMANCE UART
XR16M654 1.62V TO 3.63V QUAD UART
XR16M654D 1.62V TO 3.63V QUAD UART
XR16M670 1.62V TO 3.63V HIGH PERFORMANCE UART
XR16M570 1.62V TO 3.63V HIGH PERFORMANCE UART

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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XR16M681 1.62V TO 3.63V UART WITH 32-BYTE FIFO AND VLIO INTERFACE AUGUST 2009 REV. 1.0.1 GENERAL DESCRIPTION The XR16M6811 (M681) is an enhanced Universal Asynchronous Receiver and Transmitter (UART) with a VLIO bus interface and has 32 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 20 Mbps at 3.3V, 16 Mbps at 2.5V and 10 Mbps at 1.8V with 4X data sampling rate. The Auto RS-485 Half-Duplex Direction control feature simplifies both the hardware and software for half-duplex RS-485 applications. In addition, the Multidrop mode with Auto Address detection increases the performance by simplifying the software routines.