PCA9538DGVR - Texas Instruments

Manufacturer Part Number

PCA9538DGVR

Manufacturer

Texas Instruments

Introduction

The PCA9538DGVR is a low-voltage 8-bit General Purpose Input/Output (GPIO) expander with interrupt and reset for I2C-bus/SMBus applications.

Product Features and Performance

8-bit I/O ports with configurable polarity

I2C and SMBus interface support

Interrupt Output feature for input change notification

Power-On Reset (POR) support

Push-Pull Output Type

Current - Output Source/Sink up to 10mA, 25mA

Clock Frequency support up to 400 kHz

Wide Voltage Supply range from 2.3V to 5.5V

Operating Temperature range from -40°C to 85°C

Product Advantages

Flexible input/output configuration enhances peripheral expansion

Low power consumption suitable for battery-operated devices

Push-Pull outputs eliminate the need for pull-up resistors

Interrupt output enables immediate host notification of input changes, reducing polling over the I2C bus

Compact 16-TFSOP package saves PCB space

Key Technical Parameters

Number of I/O: 8

Interface: I2C, SMBus

Interrupt Output: Yes

Features: Power-On Reset

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

Clock Frequency: 400 kHz

Voltage - Supply: 2.3V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Highly integrated design for reliable operation

Compliant with I2C and SMBus standards

Designed for industrial temperature ranges

Compatibility

Compatible with standard I2C and SMBus protocols

Supports multiple host controllers

Application Areas

Embedded systems and microcontroller-based applications

Consumer electronics

Industrial control systems

Mobile and battery-operated devices

Data acquisition systems

Product Lifecycle

Last Time Buy status, indicating nearing discontinuation

Check with distributor or manufacturer for replacement or upgrade options

Several Key Reasons to Choose This Product

Versatility in the wide range operating voltage and temperature, making it suitable for various environments

Robust interface compatibility enhancing system integration

Simple input/output expansion for complex microcontroller projects

Real-time interrupt feature for enhanced system responsiveness

Streamlines design process due to standardized packaging and interface

Manufacturer support and reliability from Texas Instruments