PCA9555DBR - Texas Instruments

Manufacturer Part Number

PCA9555DBR

Manufacturer

Texas Instruments

Introduction

The PCA9555DBR from Texas Instruments is a 16-bit I/O expander with an I2C and SMBus interface, designed for versatile interfacing in microcontroller-based systems.

Product Features and Performance

16 I/O ports

I2C and SMBus compatible interface

Interrupt output feature

Push-Pull output type

Power-on reset

Supports up to 400 kHz clock frequency

Product Advantages

High compatibility with various microcontroller systems

Enhanced data handling capacity with 16-bit extension

Low power consumption

Integrated interrupt output to manage input change notifications

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Output Type: Push-Pull

Current - Output Source/Sink: 10 mA, 25 mA

Clock Frequency: 400 kHz

Voltage - Supply: 2.3V to 5.5V

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Built with robust surface mount technology

Designed to operate under a wide range of environmental conditions

Compatibility

Compatible with devices that support I2C and SMBus protocols

Application Areas

Industrial automation

Consumer electronics

Data servers

Communication systems

Product Lifecycle

Status: Active

Not nearing discontinuation

Replacements or upgrades readily available

Several Key Reasons to Choose This Product

Flexible supply voltage range from 2.3V to 5.5V to suit various system designs

Highly responsive with up to 400 kHz clock frequency ensuring swift data transfer

Power-on reset feature enhances system reliability after power interruptions

Capable of sourcing or sinking current up to 25 mA for driving connected components

Wide operating temperature makes it suitable for harsh environments