PCA9535DBQR - Texas Instruments

Manufacturer Part Number

PCA9535DBQR

Manufacturer

Texas Instruments

Introduction

The PCA9535DBQR is a 16-bit I/O expander with an I2C and SMBus compatible interface, designed for extending input/output capabilities of microcontrollers.

Product Features and Performance

16 I/O pins

I2C and SMBus interface

Interrupt output feature

Power-on reset (POR)

Push-pull output type

Capable of sourcing or sinking 10mA and 25mA

Supports clock frequency up to 400 kHz

Wide supply voltage range from 2.3V to 5.5V

Product Advantages

Increases I/O port availability

Interrupt output aids event response

Flexible voltage requirements enhance compatibility

Push-pull outputs provide stronger drive capability

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Output Type: Push-Pull

Current Output Source/Sink: 10mA, 25mA

Clock Frequency: 400 kHz

Voltage Supply: 2.3V ~ 5.5V

Quality and Safety Features

Power-on reset minimizes improper operation after power fluctuations

Operating temperature range of -40°C to 85°C ensures reliability under extreme conditions

Compatibility

Compatible with microcontrollers supporting I2C or SMBus

Suits systems with voltage supply flexibility between 2.3V and 5.5V

Application Areas

Industrial automation

Consumer electronics

Server farms

Data centers

Product Lifecycle

Status: Last Time Buy

Nearing discontinuation with limited time for purchase

Availability of replacements or upgrades should be verified per specific needs

Several Key Reasons to Choose This Product

High number of expandable I/Os which enhances device control

Supports both I2C and SMBus for versatile interfacing options

Robust withstand feature for a wide range of operating temperatures and voltages

Integrated interrupt output improves system response to peripheral events

Reliable performance verified by Texas Instruments’ standards and history in the industry