PCF8574RGTR - Texas Instruments

Manufacturer Part Number

PCF8574RGTR

Manufacturer

Texas Instruments

Introduction

The PCF8574RGTR from Texas Instruments is an I2C-controlled 8-bit I/O expander designed for microcontroller expansion.

Product Features and Performance

I2C Interface Compatibility

Eight Software-Configurable I/O Pins

Interrupt Output for Input Change Notification

Power-On Reset Feature

Push-Pull Outputs Drive Capability

100 kHz I2C Bus Clock Frequency

Robust ESD Protection

Product Advantages

Enables Expansion of I/Os for Limited GPIO Microcontrollers

Saves PCB Space with Compact 16-VFQFN Exposed Pad Package

Low Standby Current for Power-Saving Applications

Supports Hot Insertion

Key Technical Parameters

Number of I/O: 8

Interrupt Output: Yes

Clock Frequency: 100 kHz

Voltage - Supply: 2.5V ~ 6V

Operating Temperature: -40°C ~ 85°C

Current - Output Source/Sink: 1mA, 25mA

Quality and Safety Features

High-Level Integration for Reliable Operation

Industrial Temperature Range Support

Compatibility

Compatible with I2C Bus Standards

Can be used in 3.3V or 5V Systems

Application Areas

Embedded Systems

Microcontroller Expansion

Signal Translation

Power Management

Sensor Reading

Product Lifecycle

Status: Active

Product Continuity Assured; Consult Texas Instruments for Long-Term Availability

Several Key Reasons to Choose This Product

Increase GPIO Capability without a Larger Microcontroller

Low Power Consumption Extends Battery Life in Portable Devices

Flexible Supply Voltage for Versatile Use in Different Circuits

Quick Integration with Best-in-Class Software Support from Texas Instruments

Suited for Rapid Prototyping and Mass Production