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Image for illustration purposes only,
refer to technical specifications

Manufacturer Part #

PCA9539PW,118

PCA9539 Series 5.5 V 25 A 16-bit I2C-bus and SMBus Low Power I/O Port - TSSOP-24

PCA9539PW,118 Datasheet
ECAD Model: Convert this file for your ECAD tool by downloading the free Library Loader. Learn more about ECAD model.
Mfr. Name:	NXP
Standard Pkg:	Product Variant Information section Available Packaging Package Qty: 2500 per Reel Package Style: TSSOP-24 Mounting Method: Surface Mount
Date Code:	2337

NXP PCA9539PW,118 - Technical Attributes

Interface Type:	I2C/SMBus
Clock Frequency-Max:	400kHz
No of I/O Lines:	16
Supply Voltage-Nom:	2.3V to 5.5V
Supply Current:	160mA
Package Style:	TSSOP-24
Mounting Method:	Surface Mount

Features & Applications

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. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output register. The polarity of the read register can be inverted with the Polarity inversion register. All registers can be read by the system master.

Features:

16-bit I2C-bus GPIO with interrupt and reset
Operating power supply voltage range of 2.3 V to 5.5 V
5 V tolerant I/Os
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
Internal power-on reset
16 I/O pins which default to 16 inputs
0 Hz to 400 kHz clock frequency