TCA9554PWR - Texas Instruments

Manufacturer Part Number

TCA9554PWR

Manufacturer

Texas Instruments

Introduction

The TCA9554 is a low-voltage 8-bit I/O expander for the I2C bus and SMBus.

Product Features and Performance

8-bit I/O expander for I2C/SMBus protocols

Power-On Reset (POR) feature

Push-Pull output type

Supports 400 kHz I2C Fast-mode clock frequency

Interrupt output feature for input change notification

Product Advantages

Allows for I/O expansion using the two-line bidirectional bus (I2C)

Reduces complexity for I/O control over the I2C bus

Integrated POR to ensure power stability

Capable of sinking or sourcing current with 10mA and 25mA specifications

Key Technical Parameters

Number of I/O: 8

Interface: I2C, SMBus

Interrupt Output: Yes

Current - Output Source/Sink: 10mA, 25mA

Clock Frequency: 400 kHz

Voltage - Supply: 1.65V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Designed to meet stringent quality and safety standards for industrial applications

Compatibility

Compatible with other I2C and SMBus devices and systems

Application Areas

Used in a wide range of applications, including consumer electronics, automotive, industrial control systems, and mobile devices

Product Lifecycle

Active product status

Continuously supplied and supported with potential future upgrades

Several Key Reasons to Choose This Product

Efficient I2C I/O expansion capabilities

Push-Pull outputs eliminating the need for discrete pull-up resistors

Low power operation to minimize power consumption in battery-powered devices

High noise immunity with an interrupt feature to improve system responsiveness

Broad voltage range support for compatibility with various logic levels

Robust operating temperature range suitable for industrial environments