PCF8574APW - Texas Instruments

Manufacturer Part Number

PCF8574APW

Manufacturer

Texas Instruments

Introduction

The PCF8574APW is an 8-bit I/O expander with an I2C interface, designed for system engagement and minimization of microcontroller I/O pin usage.

Product Features and Performance

8-bit remote I/O expander

I2C bus interface

Interrupt output function

Power-on reset (POR)

Push-Pull output type

Able to source and sink currents of 1mA and 25mA respectively

Product Advantages

Reduces microcontroller I/O pin usage significantly

Supports multiple devices on the same bus (I2C)

Ensures system reliability with Power-on Reset feature

Provided with an interrupt output to manage input changes

Key Technical Parameters

Number of I/O: 8

Interface: I2C

Interrupt Output: Yes

Clock Frequency: 100 kHz

Voltage - Supply: 2.5V ~ 6V

Operating Temperature: -40°C ~ 85°C

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

Mounting Type: Surface Mount

Package / Case: 20-TSSOP (0.173", 4.40mm Width)

Quality and Safety Features

Robust operating temperature range from -40°C to 85°C

Compliant with the I2C bus standard

Compatibility

Compatible with any microcontroller that supports I2C interface

Application Areas

Used in industrial control systems

Consumer electronics

Server farms

Automation systems

Product Lifecycle

Currently Obsolete

Potential recommendations for replacements or upgrades may need to be discussed with Texas Instruments

Several Key Reasons to Choose This Product

Flexible source and sink current capabilities

I2C Interface allows communication on the same bus which reduces wiring complexity

Interrupt feature aids in effective event management

Robust against extreme temperatures, suitable for various environments

Easy integration into existing setups due to common package and interface