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CAT9534 Datasheet 8-bit I2c And Smbus I/o Port

Manufacturer: onsemi

Overview: .. CAT9534 8-bit I²C and SMBus I/O Port with Interrupt.

General Description

The CAT9534 is an 8-bit parallel input/output port expander for I²C and SMBus patible applications.

These I/O expanders provide a simple solution in applications where additional I/Os are needed: sensors, power switches, LEDs, pushbuttons, and fans.

The CAT9534 consists of an input port register, an output port register, a configuration register, a polarity inversion register and an I²C/SMBus-patible serial interface.

Key Features

  • 400kHz I²C bus compatible.
  • 2.3V to 5.5V operation.
  • Low stand-by current.
  • 5V tolerant I/Os.
  • 8 I/O pins that default to inputs at power-up.
  • High drive capability.
  • Individual I/O configuration.
  • Polarity inversion register.
  • Active low interrupt output.
  • Internal power-on reset.
  • No glitch on power-up.
  • Noise filter on SDA/SCL inputs.
  • Cascadable up to 8 devices.
  • Industrial temperature range.
  • RoHS-compliant 16-lead SOIC and TSSOP.

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