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XR16M654D Datasheet 1.62V TO 3.63V QUAD UART

Manufacturer: Exar (now MaxLinear)

Download the XR16M654D datasheet PDF. This datasheet also includes the XR16M654 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (XR16M654-Exar.pdf) that lists specifications for multiple related part numbers.

General Description

The XR16M6541 (M654) 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 16 Mbps 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.

Overview

XR16M654/654D 1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO MAY 2008 REV.

1.0.

Key Features

  • Pin-to-pin compatible with ST16C454, ST16C554, TI’s TL16C754B and NXP’s SC16C654B.
  • Intel or Motorola Data Bus Interface select.
  • Four independent UART channels.
  • Register Set Compatible to 16C550.
  • Data rates of up to 16 Mbps.
  • 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.
  • Progammable Xon/.

More Datasheets from Exar (now MaxLinear)

Part Number Description
XR16M654 1.62V TO 3.63V QUAD UART
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XR16M890 UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
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