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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.

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.

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.

📥 Download Datasheet

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

📁 Similar Datasheet

Part Number Description Manufacturer
PCA9539 Low-voltage 16-bit I2C and SMBus low-power I/O expander nexperia
PCA9539 Remote 16-Bit I2C and SMBus Low-Power I/O Expander Texas Instruments
PCA9530 2-bit I2C-bus LED dimmer NXP Semiconductors
PCA9534 Remote 8-Bit I2C and SMBus Low-Power I/O Expander Texas Instruments
PCA9534A Remote 8-BIT I2C and SMBus Low-Power I/O Expander Texas Instruments

Other Datasheets by NXP Semiconductors

Part Number Description
PCA9539 16-bit I2C and SMBus low power I/O port
PCA9531 8-bit I2C LED dimmer
PCA9532 16-bit I2C LED dimmer
PCA9533 4-bit I2C LED dimmer
PCA9534 8-bit I2C and SMBus/ low power I/O port

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.

View original datasheet text
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. 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. The PCA9539; PCA9539R consists of two 8-bit configuration (input or output selection), input, output and polarity inversion (active HIGH or active LOW operation) registers.