PCA9539DBQR - Texas Instruments

Manufacturer Part Number

PCA9539DBQR

Manufacturer

Texas Instruments

Introduction

PCA9539DBQR is an I/O expander from Texas Instruments used to increase the number of I/O ports available for use in microcontroller-based systems.

Product Features and Performance

16 I/O ports

I2C and SMBus interface support

Interrupt output capability

Power-on reset (POR) feature

Push-pull output type

Up to 10mA, 25mA output source/sink current

Supports up to 400 kHz clock frequency

Operates in a wide voltage supply range (2.3V to 5.5V)

Supports operating temperature from -40°C to 85°C

Product Advantages

Provides significant expansion of I/O ports for complex systems

Flexible communication via widely used I2C and SMBus interfaces

POR feature for reliable operation upon power-up

Adequate current driving capability for a variety of loads

Key Technical Parameters

Number of I/O: 16

Clock Frequency: 400 kHz

Voltage Supply: 2.3V to 5.5V

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Robust operating temperature range ensuring performance in extreme conditions

Manufactured by trusted industry leader, Texas Instruments

Conforms to industry safety and quality standards

Compatibility

Compatible with microcontrollers that support I2C and SMBus interfaces

Compatible with various supply voltages for easy integration

Application Areas

Embedded systems

Industrial control

Home automation

Consumer electronics

Product Lifecycle

Product Status: Last Time Buy

Anticipate discontinuation with alternatives and upgrades available

Several Key Reasons to Choose This Product

Versatile 16 I/O ports expand system capabilities

Facilitates communication with I2C and SMBus, enabling ease of integration

Interrupt output allows for efficient system response

Texas Instruments reputation assures quality and reliability

Operates reliably across a wide voltage and temperature range

Suitable for a diverse range of applications from industrial to consumer electronics

Planning for future needs is facilitated with the awareness of product lifecycle status