PCA9539PWR - Texas Instruments

Manufacturer Part Number

PCA9539PWR

Manufacturer

Texas Instruments

Introduction

The PCA9539PWR is an I/O expander from Texas Instruments, designed to provide additional input/output possibilities to microcontrollers via an I2C or SMBus interface.

Product Features and Performance

16-bit I/O expander

I2C and SMBus compatible interface

Interrupt output feature for enhanced control

Power-On Reset (POR) functionality

Push-pull output type

Source or sink current: 10mA and 25mA

Supports clock frequency up to 400 kHz

Operating voltage range from 2.3V to 5.5V

Suitable for operation in temperatures ranging from -40°C to 85°C

Surface-mount technology with 24-TSSOP package

Product Advantages

Expands I/O capabilities significantly for microcontrollers

Flexible interface compatibility allows for use with various microcontrollers

Low voltage operation suitable for battery-operated applications

High-temperature operational range ensures reliability in varying environments

Simplified system design and minimized need for hardware changes

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Interrupt Output: Yes

Output Type: Push-Pull

Current Output Source/Sink: 10mA, 25mA

Clock Frequency: 400 kHz

Voltage Supply: 2.3V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Package: 24-TSSOP

Quality and Safety Features

Power-On Reset (POR) ensures reliable operation after power cycles

Robust operating temperature range for enhanced performance stability

Compatibility

Designed to be compatible with microcontrollers supporting I2C or SMBus interfaces

Can be used in conjunction with other Texas Instruments solutions for comprehensive system design

Application Areas

Industrial controls

Consumer electronics

Automotive systems

Home automation

Communication systems

Product Lifecycle

Tagged as Not For New Designs indicating it may be nearing discontinuation

Potential customers should consider future availability or seek replacements or upgrades

Several Key Reasons to Choose This Product

Extends I/O capabilities with 16 additional inputs/outputs, offering flexibility in design

Supports common communication interfaces (I2C, SMBus) for straightforward integration

Wide operating voltage and temperature range cater to a variety of applications and environments

Provides precise control and monitoring capabilities with interrupt output feature

Texas Instruments' reliability and support for ease of integration and maintenance