TCA9555DBR - Texas Instruments

Manufacturer Part Number

TCA9555DBR

Manufacturer

Texas Instruments

Introduction

Expand I/O ports of microcontrollers with TCA9555DBR interfacing via I2C/SMBus

Product Features and Performance

16-bit I/O expander for I2C/SMBus

Power-on reset

Push-Pull outputs

Interrupt output feature

Supports 400 kHz I2C fast mode

Broad supply voltage range from 1.65V to 5.5V

Product Advantages

Increases GPIO capacity without complex hardware changes

Low standby current for power-saving

Compatible with various microcontrollers and processors

Robust ESD protection

Key Technical Parameters

16 I/O ports

I2C and SMBus interface

Interrupt Output

Output current capability: 10mA source, 25mA sink

Clock frequency support up to 400 kHz

Power Supply Range: 1.65V to 5.5V

Operating temperature range: -40°C to 85°C

Quality and Safety Features

Industrial temperature grade

Enhanced ESD protection

Compatibility

Compatible with I2C and SMBus protocols

Multi-voltage I/O support for cross-voltage system integration

Application Areas

Embedded systems

Microcontroller-based systems

Industrial control

Advanced digital consumer electronics

Automotive

Product Lifecycle

Product status: Active

No indication of near discontinuation

Upgrades and replacements availability ensured by Texas Instruments

Several Key Reasons to Choose This Product

Simplified design for I/O expansion

Extensive support for both I2C and SMBus

Wide operating temperature range suitable for industrial applications

Highly integrated, reducing count of external components

Reliable performance from a recognized semiconductor manufacturer

Good long-term availability for lifecycle management