TCA9544APWR - Texas Instruments

Manufacturer Part Number

TCA9544APWR

Manufacturer

Texas Instruments

Introduction

The TCA9544APWR is a 4-channel I2C bus switch that provides interface flexibility and is part of Texas Instruments' TCA series.

Product Features and Performance

4-channel I2C-bus switch with interrupt logic

1 to 4 bidirectional translating switches

I2C-bus and SMBus compliant

Low on-resistance

Low stand-by current

Active-Low interrupt output

Input/output sinking current 20 mA

Product Advantages

High channel capacity enhances design scalability

Allows voltage level translation between 1.65V and 5.5V buses

Enables direct interfacing to I2C-bus of different voltage levels

Minimizes power consumption with low stand-by current

Facilitates easy I2C address expansion

Integrates built-in level shifting

Key Technical Parameters

Circuit type: 1 x 1:4 Multiplexer

Independent Circuits: 1

Voltage Supply Source: Single Supply

Voltage - Supply Range: 1.65V to 5.5V

Operating Temperature Range: -40°C to 85°C

Mounting Type: Surface Mount

Package / Case: 20-TSSOP

Quality and Safety Features

Operational in a wide range of temperatures

Compatibility

Compatible with I2C and SMBus protocols

Can be used with multiple voltage levels on same bus

Application Areas

Communications & Networking

Consumer Electronics

Industrial

Automotive systems

Computer applications

Product Lifecycle

Active product status (not nearing discontinuation)

Availability of replacements or upgrades not specified

Several Key Reasons to Choose This Product

Enables multi-master capability in I2C systems

Resolves I2C slave address conflicts

Increases fan-out of I2C bus for complex systems

Provides low on-resistance for higher efficiency

Supports hot insertion

Easily integrates into various systems due to wide voltage range compatibility