PCA9539DW - Texas Instruments

Manufacturer Part Number

PCA9539DW

Manufacturer

Texas Instruments

Introduction

The PCA9539DW is a 16-bit general-purpose input/output (GPIO) expander with I2C-bus/SMBus interface. It provides 16 input/output pins that can be independently configured as inputs or push-pull outputs. The device also features a power-on reset (POR) function, and an interrupt output pin that can be used to signal the processor when the state of the input pins has changed.

Product Features and Performance

16 independently configurable input/output pins

I2C-bus/SMBus interface

Power-on reset (POR) function

Interrupt output pin

Push-pull output type

Output source/sink current up to 10/25 mA

Operating voltage range: 2.3 V to 5.5 V

Operating temperature range: -40°C to 85°C

400 kHz clock frequency

Product Advantages

Flexible I/O configuration

Compact 24-SOIC package

Wide operating voltage and temperature range

Reliable power-on reset function

Interrupt capability for efficient system monitoring

Key Reasons to Choose

Versatile GPIO expander for a wide range of applications

Robust performance and reliability

Easy integration with I2C/SMBus-based systems

Cost-effective solution for expanding I/O capabilities

Quality and Safety Features

Electrostatic discharge (ESD) protection

Latch-up prevention

Undervoltage lockout

Compatibility

The PCA9539DW is compatible with I2C-bus and SMBus protocols, allowing easy integration into a variety of embedded systems.

Application Areas

Industrial control and automation

Consumer electronics

Automotive electronics

Home appliances

Embedded systems

Product Lifecycle

The PCA9539DW is in the Last Time Buy phase, meaning it is nearing the end of its production lifecycle. Customers are advised to contact our website's sales team for information on equivalent or alternative models that may be available.