TCA9535DBR - Texas Instruments

Manufacturer Part Number

TCA9535DBR

Manufacturer

Texas Instruments

Introduction

The TCA9535DBR is an I/O expander from Texas Instruments designed for I2C or SMBus interfaces.

Product Features and Performance

16-bit I/O ports for input/output expansion

I2C and SMBus compatible interface

Interrupt output for input change notification

Power-on reset (POR) feature

Configurable as either inputs or outputs

Product Advantages

Low standby current

5V tolerant I/O ports

Enhanced ESD protection

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Interrupt Output: Yes

Output Type: Push-Pull

Output Current: 10mA sink, 25mA source

Clock Frequency: 400 kHz maximum

Voltage Supply: 1.65V to 5.5V

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Integrated low-voltage reset

Noise filter on SCL/SDA inputs

Latch-up performance exceeds 100 mA per JESD 78, Class II

Compatibility

Supports multiple I2C bus speed modes (Standard, Fast, Fast-Plus)

Works with 1.65V to 5.5V logic levels

Application Areas

Industrial control systems

Server management

Robotics

Power Management

Consumer Electronics

Product Lifecycle

Active product status, not near discontinuation

Availability for future replacements or upgrades

Several Key Reasons to Choose This Product

Ease of expanding inputs and outputs over a serial I2C bus

Compatibility with different bus speed modes for system flexibility

Robust safety features for improved reliability

Wide voltage range accommodating diverse power supplies

Suitable for broad industrial and commercial applications

Packaging in Tape & Reel form for efficient assembly processes

Surface mount technology for compact and efficient PCB design