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XR19L402 - TWO CHANNEL INTEGRATED UART AND RS-485 TRANSCEIVER

General Description

The XR19L402 (L402) is a highly integrated device that combines a full-featured two channel Universal Asynchronous Receiver and Transmitter (UART) and RS485 transceivers.

The L402 is designed to operate with a single 3.3V or 5V power supply.

The L402 is fully compliant with RS-485 Standards.

Key Features

  • Meets true RS-485 Standards at 3.3V or 5V operation.
  • Up to 8 Mbps data transmission rate.
  • 45us sleep mode exit (charge pump to full power).
  • ESD protection for RS-485 I/O pins at.
  • +/-15kV - Human Body Model +/- 8kV - IEC 1000-4-2, Contact Discharge +/- 15kV - IEC 61000-4-2, Air-Gap Discharge.
  • Software compatible with industry standard 16550 UART.
  • Intel/Motorola bus select.
  • Complete modem interface.
  • Sleep.

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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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www.DataSheet4U.com JUNE 2007 XR19L402 TWO CHANNEL INTEGRATED UART AND RS-485 TRANSCEIVER REV. 1.0.0 GENERAL DESCRIPTION The XR19L402 (L402) is a highly integrated device that combines a full-featured two channel Universal Asynchronous Receiver and Transmitter (UART) and RS485 transceivers. The L402 is designed to operate with a single 3.3V or 5V power supply. The L402 is fully compliant with RS-485 Standards. The L402 operates in four different modes: Active, Partial Sleep, Full Sleep and Power-Save. Each mode can be invoked via hardware or software. Upon power-up, the L402 is in the Active mode where the UART and RS-485 transceiver function normally. In the Partial Sleep mode, the internal crystal oscillator of the UART or charge pump of the RS-485 transceiver is turned off.