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XR16V554 - 2.25V TO 3.6V QUAD UART

Description

The XR16V554 (V554) is a quad Universal Asynchronous Receiver and Transmitter (UART) with 16 bytes of transmit and receive FIFOs, selectable receive FIFO trigger levels and data rates of up to 4 Mbps at 3.3 V.

Features

  • Pin-to-pin compatible with ST16C454, ST16C554, TI’s TL16C554A and Philip’s SC16C554B.
  • Intel or Motorola Data Bus Interface select.
  • Four independent UART channels.
  • Register Set Compatible to 16C550 Data rates of up to 4 Mbps at 3.3 V and 3.125 Mbps at 2.5 V 16 byte Transmit FIFO 16 byte Receive FIFO with error tags 4 Selectable RX FIFO Trigger Levels Full modem interface.
  • 2.25V to 3.6V supply operation.
  • Crystal.

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Full PDF Text Transcription

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www.DataSheet4U.com MAY 2007 XR16V554/554D 2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO REV. 1.0.1 GENERAL DESCRIPTION The XR16V554 (V554) is a quad Universal Asynchronous Receiver and Transmitter (UART) with 16 bytes of transmit and receive FIFOs, selectable receive FIFO trigger levels and data rates of up to 4 Mbps at 3.3 V. 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 V554 is available in a 48pin QFN, 64-pin LQFP, 68-pin PLCC and 80-pin LQFP packages.
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