TCA9536DGKR - Texas Instruments

Manufacturer Part Number

TCA9536DGKR

Manufacturer

Texas Instruments

Introduction

The TCA9536DGKR is a versatile, low-voltage 4-bit I/O expander from Texas Instruments, designed for I2C and SMBus interfaces. It aids in expanding I/O capabilities utilizing minimal pins on the main controller.

Product Features and Performance

Interface compatibility with I2C and SMBus

4 configurable I/Os supporting digital input and output

Open drain outputs with interrupt functionality

Power-on reset (POR) feature for reliable operation

Supports a clock frequency of up to 1 MHz

Wide voltage supply range from 1.65V to 5.5V

High operating temperature range from -40°C to +125°C

Surface mount packaging for compact integration

Product Advantages

Minimizes the need for multiple GPIOs on the main processor

Flexible power supply compatibility ensures suitability for a broad range of applications

The compact size facilitates integration in space-constrained applications

Enhanced system reliability through the POR feature

Low power consumption suitable for battery-operated devices

Key Technical Parameters

Number of I/O: 4

Current Output Source/Sink: 10mA, 25mA

Voltage Supply: 1.65V to 5.5V

Clock Frequency: 1 MHz

Interface: I2C, SMBus

Output Type: Open Drain

Operating Temperature: -40°C to +125°C

Quality and Safety Features

Manufactured by Texas Instruments, known for high-quality and reliable components

Built-in power-on reset enhances system stability

Compliant with industry standards for I2C and SMBus protocols

Compatibility

Broad compatibility with microcontrollers supporting I2C or SMBus

Flexible voltage requirement allows for use with various logic levels

Application Areas

I/O expansion for microcontrollers in embedded systems

Portable and battery-operated devices

Industrial control systems

Home automation and smart devices

Product Lifecycle

Currently in the active product phase with no reported discontinuation or last time buy date

Future upgrades or replacements may offer higher I/O count or improved power efficiency

Several Key Reasons to Choose This Product

Robust expandability of I/O ports without needing significant additional resources

High reliability and quality backed by Texas Instruments

Flexible application across diverse operating voltages and environments

Compact form factor suitable for miniaturized electronic designs

The integration of an interrupt output enables efficient event-driven programming, reducing the need for continuous polling