PCA9538PWR - Texas Instruments

Manufacturer Part Number

PCA9538PWR

Manufacturer

Texas Instruments

Introduction

Interface I/O expander for I2C and SMBus protocols

Product Features and Performance

8 programmable I/O pins

Support for I2C, SMBus with interrupt output

Features Power-on Reset (POR)

Push-Pull output type

Supports up to 400 kHz clock frequency

Wide voltage supply range from 2.3V to 5.5V

Product Advantages

Simplifies expansion of I/Os for microcontrollers

Robust push-pull outputs for driving higher currents

Low standby current suitable for battery-operated applications

Power-on Reset provides reliable start-up conditions

Key Technical Parameters

Number of I/O: 8

Interrupt Output: Yes

Output Type: Push-Pull

Current - Output Source/Sink: 10mA, 25mA

Clock Frequency: 400 kHz

Voltage - Supply: 2.3V to 5.5V

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Built-in Power-on Reset (POR) for reliable operation

Compatibility

Compatible with I2C and SMBus interfaces

Works with various microcontrollers with I2C/SMBus capability

Application Areas

Microcontroller system expansion

Industrial control systems

Servers and data centers

Automotive electronics

Consumer electronics

Product Lifecycle

Product Status: Active

Not nearing discontinuation

Availability of replacements or upgrades if needed

Several Key Reasons to Choose This Product

Easy to integrate with numerous microcontroller architectures

Wide operating voltage and temperature range cater to diverse environments and applications

High clock frequency support enables faster data communication

Low power consumption for energy-sensitive projects

Available in a surface-mount package for compact PCB designs

Tape & Reel packaging for efficient assembly processes

Robust quality and safety features ensure reliable operation in a variety of use cases