PCA9555RGER - Texas Instruments

Manufacturer Part Number

PCA9555RGER

Manufacturer

Texas Instruments

Introduction

The PCA9555RGER is a 16-bit I/O expander with an I2C and SMBus interface.

Product Features and Performance

16 I/O ports configurable as inputs or outputs

I2C and SMBus compatible interface

Interrupt output feature for input change notification

Power-on reset (POR) function

Push-pull output type, eliminating the need for external pull-up resistors

Supports up to 400 kHz clock frequency for fast data transfer

Wide voltage supply range from 2.3V to 5.5V

Product Advantages

High integration reduces component count and design complexity

Robust push-pull outputs capable of driving LEDs or other indicators directly

Flexible voltage range ensures compatibility with various logic levels

Internal power-on reset eases power management in complex systems

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Interrupt Output: Yes

Features: POR

Output Type: Push-Pull

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

Clock Frequency: 400 kHz

Voltage - Supply: 2.3V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Wide operating temperature range suitable for industrial applications

Power-on reset minimizes erroneous operation upon power-up

Compatibility

Compatible with I2C and SMBus protocols

Supports a wide range of supply voltages for interfacing with various microcontrollers

Application Areas

Industrial controls

Server motherboards

Consumer electronics

Home automation

Robotics

Product Lifecycle

Active

Not nearing discontinuation

Replacements and upgrades would likely share similar I2C/SMBus specifications

Several Key Reasons to Choose This Product

Expanded I/O capability for microcontrollers with limited GPIO

Easy to integrate with existing I2C or SMBus systems

Ability to drive direct loads simplifies circuit design

Provides interrupt capability to alert the host microcontroller of input changes

Tape & Reel packaging suitable for high-volume production and automated assembly

Support from a reputable semiconductor manufacturer with reliable product support and lifecycle management