PCA9538ABSHP - NXP USA Inc.

Manufacturer Part Number

PCA9538ABSHP

Manufacturer

NXP Semiconductors

Introduction

PCA9538ABSHP is an 8-bit I/O expander with an I2C bus interface.

Product Features and Performance

8 I/O pins controlled through the I2C interface

Provides interrupt output feature for input change notification

Equipped with Power-On Reset (POR)

Push-Pull type output configuration

Offers two programmable output current levels, 10mA or 25mA

Supports clock frequencies up to 400 kHz

Wide operating voltage range from 1.65V to 5.5V

Capable of functioning in extreme temperatures, ranging from -40°C to 85°C

Product Advantages

Expands I/O options with minimal pin use on central microcontroller

Interrupt feature optimizes microcontroller resources by signaling input changes

Flexible for use with a broad range of supply voltages

Suited for industrial temperature ranges, enhancing reliability

Compact 16-VFQFN Exposed Pad package for space-constrained applications

Key Technical Parameters

Number of I/O: 8

Interface: I2C, SMBus

Interrupt Output: Yes

Output Type: Push-Pull

Current Output Source/Sink: 10mA, 25mA

Clock Frequency: 400 kHz

Voltage Supply Range: 1.65V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Compliant with industry-standard protocols and safety requirements

Designed for operation in harsh environments

Compatibility

Compatible with any microcontroller that supports I2C or SMBus interface

Usable with a wide range of supply voltages for diverse applications

Application Areas

Embedded Systems

Industrial Controls

Consumer Electronics

Server Management

Automation and Robotics

Product Lifecycle

Product Status: Active

Not indicated as nearing discontinuation

Replacement or upgrade parts should be available

Several Key Reasons to Choose This Product

Flexibility in interfacing with various microcontrollers via I2C or SMBus

Ability to operate across a vast range of voltage supplies

Expanded I/O capabilities without significant increase in footprint

Suitable for use in both commercial and industrial applications due to its operational temperature range

Reliable performance in challenging environments due to robust design and quality standards