TCA9535RTWR - Texas Instruments

Manufacturer Part Number

TCA9535RTWR

Manufacturer

Texas Instruments

Introduction

The TCA9535RTWR is an integrated 16-bit I/O expander optimized for use in a wide range of interface and expansion applications. It supports I2C and SMBus interfaces, enabling efficient communication with microcontrollers.

Product Features and Performance

Provides 16 I/O ports which can be configured as input or output, enhancing the host controller capabilities.

Supports both I2C and SMBus for flexible interfacing options.

Features an interrupt output for alerting the host controller, improving system responsiveness.

Equipped with Power-On Reset (POR) to ensure a consistent start-up state.

Push-Pull output type allows for direct drive of loads with current output source/sink capability of 10mA and 25mA.

Operates at a clock frequency up to 400 kHz, enabling quick data transfer.

Wide voltage supply range from 1.65V to 5.5V, accommodating various power requirements.

Designed for operation in harsh environments with a temperature range of -40°C to 85°C.

Product Advantages

Expandability of I/O lines without needing to change the main microcontroller, saving development time and system cost.

Interrupt feature improves the efficiency of the system by reducing polling overhead.

Low power consumption and wide voltage range make it suitable for battery-operated applications.

Compact 24-WQFN package optimizes PCB space.

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Current Output Source/Sink: 10mA, 25mA

Clock Frequency: 400 kHz

Voltage Supply: 1.65V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Mounting Type: Surface Mount

Package / Case: 24-WFQFN Exposed Pad

Quality and Safety Features

Power-On Reset (POR) functionality ensures reliability during power-up sequences.

Manufactured by Texas Instruments, a leader in semiconductor solutions with a focus on quality and safety.

Compatibility

Versatile compatibility with various microcontrollers and processors due to I2C and SMBus support.

Application Areas

General-purpose I/O expansion for microcontrollers.

Industrial control systems.

Server management.

Portable devices.

Home automation systems.

Product Lifecycle

Currently active, with no near-term discontinuation indicated.

Future upgrades or replacements are supported by Texas Instruments' commitment to product longevity.

Several Key Reasons to Choose This Product

High integration with 16 I/O ports reduces component count.

Flexible power supply and wide operating temperature range increase applicability across various environments.

Interrupt capability enhances system efficiency by reducing CPU polling requirements.

Texas Instruments' reputation for quality and support ensures long-term reliability and availability.