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XR34350 - RS-232/485/422 Serial Transceiver

Description

The XR34350 is an advanced multiprotocol transceiver supporting RS-232, RS-485, and RS-422 serial standards in a 40-pin QFN package.

Features

  • Rx enabled during Tx short-circuit condition.
  • Pin selectable cable termination.
  • No external resistors required for RS-485/ RS-422 termination and biasing.
  • 3.3V or 5V single supply operation.
  • Robust ESD protection on bus pins ±15kV IEC 61000-4-2 (air gap) ± 8kV IEC 61000-4-2 (contact) ±15kV (HBM).
  • Max data rate of 20Mbps in RS-485/ RS-422 modes and up to 1Mbps in RS-232 modes.
  • Pin selectable 250kbps slew limiting.
  • 3.

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Datasheet Details

Part number XR34350
Manufacturer MaxLinear
File Size 511.81 KB
Description RS-232/485/422 Serial Transceiver
Datasheet download datasheet XR34350 Datasheet

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Full PDF Text Transcription

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XR34350 RS-232/485/422 Serial Transceiver with Internal Termination and Wide Output Swing Description The XR34350 is an advanced multiprotocol transceiver supporting RS-232, RS-485, and RS-422 serial standards in a 40-pin QFN package. Integrated cable termination and four configuration modes allow all three protocols to be used interchangeably over a single cable or connector with no additional switching components. Full operation requires only four external charge pump capacitors. The RS-485/RS-422 modes feature one driver and one receiver (1Tx/1Rx) in both half and full duplex configurations. The RS-232 mode (3Tx/5Rx) provides full support of all eight signals commonly used with the DB9 RS-232 connector. A dedicated diagnostic loopback mode is also provided.
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