Datasheet4U Logo Datasheet4U.com

XRA1203 - 16-BIT I2C/SMBUS GPIO EXPANDER

Description

The XRA1203 is a 16-bit GPIO expander with an I2C/ SMBus interface.

After power-up, the XRA1203 has internal 100K ohm pull-up resistors on each I/O pin that can be individually enabled.

In addition, the GPIOs on the XRA1203 can individually be controlled and configured.

Features

  • 1.65V to 3.6V operating voltage.
  • 16 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 16 I2C Slave Addresses.
  • Individually programmable inputs.
  • Internal pull-up resistors.
  • Polarity inversion.
  • Individual interrupt enable.
  • Rising edge and/or Falling edge interrupt.

📥 Download Datasheet

Datasheet preview – XRA1203

Datasheet Details

Part number XRA1203
Manufacturer Exar
File Size 222.76 KB
Description 16-BIT I2C/SMBUS GPIO EXPANDER
Datasheet download datasheet XRA1203 Datasheet
Additional preview pages of the XRA1203 datasheet.

📁 Similar Datasheet

  • XRA1201 - 16-BIT I2C / SMBUS GPIO EXPANDER (MaxLinear)
  • XRA1201P - 16-BIT I2C / SMBUS GPIO EXPANDER (MaxLinear)
  • XRA10324AF - Quad Operational Amplifiers (ETC)
  • XRA1402 - 8-Bit SPI GPIO Expander (MaxLinear)
  • XRA1403 - 16-Bit SPI GPIO Expander (MaxLinear)
  • XRA1404 - 8-Bit SPI GPIO Expander (MaxLinear)
  • XRA00 - UHF/ EPCglobal/ Contactless Memory IC 96 bit ePC with Inventory and Kill Function (STMicroelectronics)
  • XRAG2 - Contactless Memory (ST Microelectronics)
Other Datasheets by Exar
  • XRA1200 - 8-BIT I2C/SMBUS GPIO EXPANDER
  • XRA1200P - 8-BIT I2C/SMBUS GPIO EXPANDER
  • XRA1201 - 16-BIT I2C/SMBUS GPIO EXPANDER
  • XRA1201P - 16-BIT I2C/SMBUS GPIO EXPANDER
  • XRA1202 - 8-BIT I2C/SMBUS GPIO EXPANDER
  • XRA1202P - 8-BIT I2C/SMBUS GPIO EXPANDER
  • XRA1206 - 8-BIT I2C/SMBUS GPIO EXPANDER
  • XRA1207 - 16-BIT I2C/SMBUS GPIO EXPANDER

Full PDF Text Transcription

Click to expand full text
XRA1203 16-BIT I2C/SMBUS GPIO EXPANDER WITH RESET SEPTEMBER 2011 REV. 1.0.0 GENERAL DESCRIPTION The XRA1203 is a 16-bit GPIO expander with an I2C/ SMBus interface. After power-up, the XRA1203 has internal 100K ohm pull-up resistors on each I/O pin that can be individually enabled. In addition, the GPIOs on the XRA1203 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. As inputs, the internal pull-up resistors can be enabled or disabled and the input polarity can be inverted. The interrupt can be programmed for different behaviors.
Published: |