PCF8574ADWR - Texas Instruments

Manufacturer Part Number

PCF8574ADWR

Manufacturer

Texas Instruments

Introduction

The PCF8574ADWR is a remote 8-bit I/O expander for the I2C-bus with interrupt functionality, enabling a simple expansion of I/O interfaces in microcontroller applications.

Product Features and Performance

8-bit remote I/O expander for I2C-bus

Interrupt output for input change notification

Power-on reset (POR) feature

Push-pull outputs with a source/sink current of 1mA, 25mA

Clock frequency support up to 100 kHz

Operating voltage range from 2.5V to 6V

Supports operating temperatures from -40°C to 85°C

Surface mount 16-SOIC package for efficient PCB space usage

Product Advantages

Increases I/O port quantity without using additional microcontroller pins

Interrupt feature allows immediate response to input changes

Flexible power supply requirements compatible with most systems

High operating temperature range supports use in challenging environments

Easy to integrate into existing designs with I2C interface

Key Technical Parameters

Number of I/O: 8

Interface: I2C

Interrupt Output: Yes

Output Type: Push-Pull

Current Output Source/Sink: 1mA, 25mA

Clock Frequency: 100 kHz

Voltage Supply: 2.5V ~ 6V

Operating Temperature: -40°C ~ 85°C

Mounting Type: Surface Mount

Package / Case: 16-SOIC

Quality and Safety Features

Manufactured by Texas Instruments, ensuring high reliability and performance

Power-on reset minimizes erroneous outputs upon power-up

Compatibility

Designed for use with all microcontrollers supporting the I2C interface

Compatible with 2.5V to 6V power supplies

Application Areas

Industrial controls

Consumer electronics

Home automation

Server motherboards

Embedded systems

Product Lifecycle

Status: Active

This product is currently in active production with no advisement of discontinuation, ensuring long-term availability and support.

Several Key Reasons to Choose This Product

Versatile and easy to use with the I2C bus for I/O expansion

Built-in interrupt feature enhances system responsiveness

Supports a wide range of supply voltages, enhancing compatibility

Reliable operation in extreme temperatures suits various application requirements

Backed by Texas Instruments' reputation for quality and support