PCA9555DBQR - Texas Instruments

Manufacturer Part Number

PCA9555DBQR

Manufacturer

Texas Instruments

Introduction

PCA9555DBQR is an integrated circuit for interfacing applications requiring additional I/O lines.

Product Features and Performance

16-bit I/O expander

I2C and SMBus compatible interface

Built-in interrupt output signaling feature

Power-on reset function

Push-pull output style

Supports 400 kHz I2C bus clock frequency

Product Advantages

Expands I/O capabilities for microcontroller based systems

Provides direct interface with most microprocessors

Reduces complexity by offering integrated features

Easy to use and integrate into existing designs

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Interrupt Output: Yes

Features: Power-on reset (POR)

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

Clock Frequency: 400 kHz

Voltage - Supply: 2.3V to 5.5V

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Robust operating temperature range for industrial applications

Complies with safety and regulatory standards

Proven reliability from Texas Instruments

Compatibility

Compatible with microcontrollers and processors supporting I2C or SMBus

Suitable for breadboards and prototyping with 24-SSOP package format

Application Areas

Embedded systems

Industrial controls

Server management

Robotics

Home automation systems

Product Lifecycle

Last Time Buy status

Potential replacements or upgrades may be available

Several Key Reasons to Choose This Product

Industry-leading performance and reliability by Texas Instruments

Significant expansion of I/O lines for complex systems

Ease of integration into existing and new designs

Multi-voltage operations suitable for various applications

Strong support and documentation available from Texas Instruments