TCA9554ADBR - Texas Instruments

Manufacturer Part Number

TCA9554ADBR

Manufacturer

Texas Instruments

Introduction

The TCA9554ADBR is a low-voltage 8-bit I/O expander from Texas Instruments designed for I2C and SMBus interface expansion in microcontroller systems where additional I/Os are needed.

Product Features and Performance

8-bit I/O expander

I2C and SMBus compatibility

Interrupt output feature for increased efficiency

Push-Pull output type

Power-on Reset (POR) feature

Supports clock frequencies up to 400 kHz

Operation voltage range: 1.65V to 5.5V

Suitable for operation in temperatures from -40°C to 85°C

Surface Mount, 16-SSOP package

Product Advantages

Versatility in low-voltage and low-current applications

Simplifies system design by adding additional I/Os through a single I2C bus

Interrupt feature allows for efficient communication and reduces power usage

Broad compatibility with various microcontroller systems

Key Technical Parameters

Number of I/O: 8

Interface: I2C, SMBus

Interrupt Output: Yes

Clock Frequency: 400 kHz

Voltage Supply: 1.65V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Mounting Type: Surface Mount

Package / Case: 16-SSOP

Quality and Safety Features

Robust operating temperature range ensures reliability under extreme conditions

Power-on Reset (POR) ensures proper operation from startup

Compatibility

Broad voltage range compatible with many logic levels

I2C and SMBus interface ensures compatibility with a wide range of microcontrollers and processors

Application Areas

Industrial controls

Consumer electronics

Medical devices

Automotive systems

Product Lifecycle

Active status indicates ongoing manufacture and support

No indication of nearing discontinuation, providing stability for design-in processes

Several Key Reasons to Choose This Product

Versatile I/O expansion through I2C/SMBus interfaces offers significant flexibility in various applications.

Low-voltage operation and interrupt output for efficient power management.

Texas Instruments' reputation for reliability and quality assurance.

Wide applicability across different industries such as automotive, consumer electronics, and industrial controls.

Active product status with no current plan for discontinuation ensures long-term availability and support.