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XRA1200P - 8-BIT I2C/SMBUS GPIO EXPANDER

This page provides the datasheet information for the XRA1200P, a member of the XRA1200 8-BIT I2C/SMBUS GPIO EXPANDER family.

Description

The XRA1200/1200P is an 8-bit GPIO expander with an I2C/SMBus interface.

After power-up, the XRA1200 has internal 100K ohm pull-up resistors on each I/O pin that can be individually enabled.

Features

  • 1.65V to 3.6V operating voltage.
  • 8 General Purpose I/Os (GPIOs).
  • 5V tolerant inputs.
  • Maximum stand-by current of 1uA at +1.8V.
  • I2C/SMBus bus interface.
  • I2C clock frequency up to 400kHz.
  • Noise filter on SDA and SCL inputs.
  • Up to 32 I2C Slave Addresses.
  • Individually programmable inputs.
  • Internal pull-up resistors.
  • Polarity inversion.
  • Individual interrupt enable.
  • Rising edge and/or Falling edge interrupt.

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Datasheet preview – XRA1200P

Datasheet Details

Part number XRA1200P
Manufacturer Exar
File Size 217.14 KB
Description 8-BIT I2C/SMBUS GPIO EXPANDER
Datasheet download datasheet XRA1200P Datasheet
Additional preview pages of the XRA1200P datasheet.

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Full PDF Text Transcription

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XRA1200/1200P 8-BIT I2C/SMBUS GPIO EXPANDER SEPTEMBER 2011 REV. 1.0.0 GENERAL DESCRIPTION The XRA1200/1200P is an 8-bit GPIO expander with an I2C/SMBus interface. After power-up, the XRA1200 has internal 100K ohm pull-up resistors on each I/O pin that can be individually enabled. The XRA1200P have the internal pull-up resistors enabled upon power-up in case it is necessary for the inputs to be in a known state. In addition, the GPIOs on the XRA1200/1200P can individually be controlled and configured. As outputs, the GPIOs can be outputs that are high, low or in three-state mode. The three-state mode feature is useful for applications where the power is removed from the remote devices, but they may still be connected to the GPIO expander.
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