PCA6408AHKX - NXP USA Inc.

Manufacturer Part Number

PCA6408AHKX

Manufacturer

NXP Semiconductors

Introduction

The PCA6408AHKX is an 8-bit I/O expander with an I2C-bus and SMBus interface.

Product Features and Performance

8-bit I/O expander

I2C and SMBus interface support

Interrupt Output for system alerts

Push-Pull Output type

Power-On Reset feature

Product Advantages

Compatible with most microcontrollers

Flexible voltage range for diverse systems

Built-in power-on reset minimizes external circuits

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

Key Technical Parameters

Number of I/O: 8

Clock Frequency: 400 kHz

Voltage - Supply: 1.65V to 5.5V

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

Operating Temperature: -40°C to 85°C

Quality and Safety Features

High-temperature operational range

Robust ESD performance

Latch-up testing surpasses 100 mA

Compatibility

Works with I2C and SMBus protocols

Surface mount compatible with 16-XFQFN footprint

Application Areas

Microcontroller system expansion

Robotics and automation

Consumer electronics

Industrial controls

Product Lifecycle

Active product status

Not indicated for discontinuation

Available in Tape & Reel (TR) for mass production

Several Key Reasons to Choose This Product

Expand system I/O without major redesign

Supports hot insertion

Low standby current for power-saving

Small form-factor package

Broad compatibility across multiple voltages and interfaces