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PCA9539R - 16-bit I2C and SMBus low power I/O port

Download the PCA9539R datasheet PDF. This datasheet also covers the PCA9539 variant, as both devices belong to the same 16-bit i2c and smbus low power i/o port family and are provided as variant models within a single manufacturer datasheet.

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Note: The manufacturer provides a single datasheet file (PCA9539_PhilipsSemiconductors.pdf) that lists specifications for multiple related part numbers.

General Description

The PCA9539;

PCA9539R is a 24-pin CMOS device that provides 16 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders.

I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.

Overview

PCA9539; PCA9539R 16-bit I2C-bus and SMBus low power I/O port with interrupt and reset Rev.

9 — 8 November 2017 Product data sheet 1.

Key Features

  • 16-bit I2C-bus GPIO with interrupt and reset.
  • Operating power supply voltage range of 2.3 V to 5.5 V (3.0 V to 5.5 V for PCA9539PW/Q900 and PCA9539RPW/Q900).
  • 5 V tolerant I/Os NXP Semiconductors PCA9539; PCA9539R 16-bit I2C-bus and SMBus low power I/O port with interrupt and reset.
  • Polarity inversion register.
  • Active LOW interrupt output.
  • Active LOW reset input.
  • Low standby current.
  • Noise filter on SCL/SDA inputs.
  • No glitch on power-up.
  • Inter.