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CAT9534 - 8-bit I2C and SMBus I/O Port

General Description

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

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

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.

📥 Download Datasheet

Datasheet Details

Part number CAT9534
Manufacturer onsemi
File Size 199.65 KB
Description 8-bit I2C and SMBus I/O Port
Datasheet download datasheet CAT9534 Datasheet

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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 CAT9534 8-bit I²C and SMBus I/O Port with Interrupt 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, and 16-pad TQFN (4 x 4mm) packages DESCRIPTION The CAT9534 is an 8-bit parallel input/output port expander for I²C and SMBus compatible applications.