TCA9555PWR - Texas Instruments

Manufacturer Part Number

TCA9555PWR

Manufacturer

Texas Instruments

Introduction

The TCA9555PWR is a 16-bit I2C and SMBus I/O expander designed for the interface category, facilitating broader functionality for microcontrollers with limited I/O pins.

Product Features and Performance

16-bit I/O port expander enhances microcontroller capabilities

I2C and SMBus compatible interface for wide-ranging use

Provides interrupt output for improved system response

Includes Power-on Reset (POR) feature for reliability

Push-Pull output type for better signal integrity

Supports up to 10mA source or 25mA sink current

Operates at clock frequencies up to 400 kHz for faster data transfer

Versatile voltage supply range of 1.65V to 5.5V accommodating various logic levels

Suitable for operating temperature range from -40°C to 85°C ensuring reliability in extreme conditions

Mounting type is surface mount for modern PCB design

Product Advantages

Highly expandable with 16 additional I/Os for microcontrollers

Flexible interfacing with a wide voltage range and I2C/SMBus capability

Ease of integration with surface mount packaging

Support for various use cases due to extended temperature range

Key Technical Parameters

16 I/O ports

I2C and SMBus interface

Interrupt Output available

10mA source, 25mA sink output current

400 kHz clock frequency

65V to 5.5V supply voltage

-40°C to 85°C operating temperature

Compatible with 24-TSSOP mounting

Quality and Safety Features

Power-on Reset for device stability

Robust operation in extended temperature range for high-reliability applications

Compatibility

Interfacing with microcontrollers using I2C or SMBus

Suitable for use with devices that support 24-TSSOP package surface mount

Application Areas

Embedded systems

Industrial controls

Server management

Consumer electronics

IoT devices

Product Lifecycle

Active product status (not subject to near-term discontinuation)

Availability of replacements or upgrades not indicated

Several Key Reasons to Choose This Product

Increases microcontroller I/O capability without the need for a larger or more expensive microcontroller

The flexible I2C interface is widely used and easy to implement

Power-on Reset function for system stability upon power-up

The scalable solution for designs with multiple I/O requirements

Suitable for a broad range of industrial and consumer applications due to versatile supply voltage and temperature range

Tape & Reel packaging for efficient assembly during manufacturing processes