PCF8575CDBQR - Texas Instruments

Manufacturer Part Number

PCF8575CDBQR

Manufacturer

Texas Instruments

Introduction

The PCF8575CDBQR is an integrated I/O expander that provides remote I/O expansion for most microcontroller families via the I2C interface.

Product Features and Performance

16-bit quasi-bidirectional input/output port

I2C and SMBus compatible interface

Interrupt generation capability

Power-on reset (POR)

Open drain outputs

Supports 400 kHz I2C bus frequency

Wide operating temperature range

Product Advantages

Enables expansion of I/O points without additional microcontroller pins

Features high-current sink/source capability

Low standby current suitable for battery-powered systems

Easy-to-use interrupt feature simplifies external input monitoring

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Interrupt Output: Yes

Output Type: Open Drain

Output Current: 10mA, 25mA

Clock Frequency: 400 kHz

Voltage Supply Range: 4.5V to 5.5V

Operating Temperature: -40°C to 85°C

Mounting Type: Surface Mount

Package: 24-SSOP

Quality and Safety Features

Robust performance ensured by wide operating voltage and temperature range

Designed following industry safety and quality standards

Compatibility

Compatible with various microcontrollers that support I2C protocol

Integrates with existing systems using I2C bus

Application Areas

Industrial controls

Home automation

Consumer electronics

Extended I/O for microprocessors

Product Lifecycle

Status: Obsolete

Replacements or upgrades should be considered as this product is no longer in active production

Several Key Reasons to Choose This Product

Provides a significant increase in I/O ports using minimal microcontroller pins

Ease of design with built-in interrupt feature to handle input change events

Reliable data transfer over I2C interface ensures system integrity

Competent support for rapid product development from Texas Instruments

Designed for straightforward PCB layout and easy surface mounting