TCA9535PWR - Texas Instruments

Manufacturer Part Number

TCA9535PWR

Manufacturer

Texas Instruments

Introduction

TCA9535PWR is an interface I/O expander that provides 16-bit GPIO expansion for I2C-bus/SMBus applications.

Product Features and Performance

16-bit I/O port expander with I2C and SMBus interface

Power-on reset (POR) feature

Interrupt output for input change detection

Push-pull output type for stronger drive

Supports up to 400 kHz I2C bus clock frequency

Compatible with multiple voltage levels ranging from 1.65V to 5.5V

Operating temperature range from -40°C to 85°C

Product Advantages

Allows for a significant increase in the number of I/Os in a system

Easy interfacing with most microcontrollers

Low standby current consumption

Enhanced system reliability with POR and interrupt features

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: 1.65V to 5.5V

Quality and Safety Features

Extended operating temperature range ensuring reliability in diverse environments

Robust ESD protection

Compatibility

Supports standard I2C and SMBus interfaces

Compatible with 1.65V to 5.5V logic levels

Application Areas

Programmable logic controllers (PLCs)

Servers

Personal computing

Industrial control

Consumer electronics

Product Lifecycle

Active product with ongoing manufacturer support

Not currently indicated as nearing discontinuation

Key Reasons to Choose This Product

Extensive compatibility with various voltage levels and bus frequencies for flexible design options

High quantity of I/O expansions to increase the functionality of microcontroller-based systems

Robust design, suitable for harsh environmental conditions

Versatile applications in both consumer and industrial markets

Reliable performance due to Texas Instruments' quality manufacturing standards