PCA9539PW - Burr Brown

Manufacturer Part Number

PCA9539PW

Manufacturer

Texas Instruments

Introduction

The PCA9539PW is an I/O expander from Texas Instruments, featuring 16 I/O ports.

Product Features and Performance

16-bit I/O expander

I2C and SMBus interface compatible

Interrupt Output for input change notification

Power-on Reset (POR) Feature

Push-Pull output type

Output current capable of sourcing/sinking 10mA and 25mA

Supports clock frequency up to 400 kHz

Wide voltage supply range from 2.3V to 5.5V

Operational across a varied temperature range from -40°C to 85°C

Product Advantages

Expands I/O capabilities for microcontrollers with limited pins

Push-Pull outputs do not require external pull-up resistors

Ability to work across a wide range of voltages for versatile application

The interrupt feature enables efficient data processing by signaling changes

The Power-on Reset ensures reliable start-up

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Interrupt Output: Yes

Current Output Source/Sink: 10mA, 25mA

Clock Frequency: 400 kHz

Voltage Supply: 2.3V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Manufactured by Texas Instruments, a leader in semiconductor solutions

Subject to intensive quality control tests

Built-in safety features such as Power-on Reset

Compatibility

I2C and SMBus compatibility facilitates use with a variety of microcontrollers

Standard 24-TSSOP package for surface mount technology

Application Areas

Embedded systems

Industrial controls

Consumer electronics

Data communication systems

Product Lifecycle

Obsolete status

Availability of replacements or upgrades may be limited; users need to refer to the manufacturer's announcements for compatible alternatives

Several Key Reasons to Choose This Product

Reliable source-sink current capability for driving LEDs or other devices

High clock frequency support for faster data transmission

Versatile operation with wide voltage and temperature range

Interrupt feature to handle I/O changes efficiently

Produced by Texas Instruments, known for their industry-standard products