PCA9538APWJ - NXP USA Inc.

Manufacturer Part Number

PCA9538APWJ

Manufacturer

nxp-semiconductors

Introduction

PCA9538APWJ is an I2C and SMBus-compatible 8-bit I/O expander designed for surface-mount applications, suitable for extending input/output capabilities in microcontroller and microprocessor systems.

Product Features and Performance

8 programmable I/O pins

I2C and SMBus interface support

Integrated interrupt output enhances system responsiveness

Power-on reset (POR) functionality

Push-pull output type for driving LEDs or other output devices

High clock frequency of 400 kHz for faster data transfer

Product Advantages

Offers flexibility with programmable I/O

Simplifies design with built-in interrupt feature

Supports a wide range of power supplies (1.65V to 5.5V)

Suitable for low and high temperature operations (-40°C to 85°C)

Key Technical Parameters

Number of I/O: 8

Interface: I2C, SMBus

Clock Frequency: 400 kHz

Voltage Supply: 1.65V ~ 5.5V

Current Output Source/Sink: 10mA, 25mA

Operating Temperature: -40°C ~ 85°C

Package / Case: 16-TSSOP

Quality and Safety Features

Power-on reset minimizes startup issues

Robust operating temperature range ensures reliability across various environmental conditions

Compatibility

Fully compatible with I2C and SMBus protocols

Suitable for any microcontroller or microprocessor with I2C or SMBus interface

Application Areas

Automation systems

Consumer electronics

Data servers

Industrial controls

Product Lifecycle

Status: Active

Not nearing discontinuation, ensuring long-term availability

Replacements or upgrades are available to maintain system compatibility and enhancements

Several Key Reasons to Choose This Product

Versatile voltage and temperature range to accommodate various application needs

High-speed I2C interface facilitates improved data transfer rates

Integrated interrupt capability for efficient system management

Robust design suitable for demanding applications

Reliable manufacturer with proven track record in semiconductor solutions