PCF8575DBR - Texas Instruments

Manufacturer Part Number

PCF8575DBR

Manufacturer

Texas Instruments

Introduction

The PCF8575DBR is an I2C interfaced 16-bit I/O expander from Texas Instruments designed for microcontroller expansion, reducing pin count requirements in applications that need additional general-purpose I/Os.

Product Features and Performance

16 individually accessible I/O pins

Support for I2C and SMBus interfaces

Interrupt output feature for input change notification

Power-on reset (POR)

Output type: Push-pull

Can source or sink currents (1mA, 25mA)

Operates at clock frequencies up to 400 kHz

Wide voltage supply range (2.5V to 5.5V)

Designed for operation across a broad temperature range (-40°C to 85°C)

Surface mount 24-SSOP package for compactness

Product Advantages

Expands microcontroller I/O capabilities efficiently

Easy integration with I2C/SMBus enabled devices

Interrupt feature allows for efficient input monitoring

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

High clock frequency support enhances communication speed

Compatible with a wide range of supply voltages for versatile use

Suitable for robust applications due to wide operating temperature range

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Interrupt Output: Yes

Current Output Source/Sink: 1mA, 25mA

Clock Frequency: 400 kHz

Voltage Supply: 2.5V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Package: 24-SSOP

Quality and Safety Features

Manufactured by Texas Instruments, a leader in semiconductor solutions

Compliance with international safety standards

Compatibility

Broad compatibility with microcontrollers supporting I2C or SMBus

Flexible voltage supply compatibility (2.5V to 5.5V) allows use with various logic levels

Application Areas

Automation systems

Embedded systems

Industrial controls

Consumer electronics

Remote I/O systems

Smart home devices

Product Lifecycle

Status: Active

Continually supported with no current indication of discontinuation

Availability of replacements or upgrades as technology advances

Several Key Reasons to Choose This Product

Expands I/O capabilities without a significant increase in microcontroller pin requirements

Integrates easily with existing I2C/SMBus protocols, ensuring seamless operation in multi-device environments

Enhanced input monitoring through interrupt capability, improving system responsiveness

Robust design suitable for a wide range of temperatures and applications

Produced by Texas Instruments, ensuring reliability and quality