PCA9555PWR - Texas Instruments

Manufacturer Part Number

PCA9555PWR

Manufacturer

Texas Instruments

Introduction

The PCA9555PWR is a 16-bit I2C-bus and SMBus I/O expander with interrupt output capabilities.

Product Features and Performance

16-bit input/output port expander with interrupt output

I2C and SMBus interface compatibility

Power-on reset (POR)

Push-pull outputs

Clock frequency support up to 400 kHz

Operational from 2.3V to 5.5V supply voltage

Extended operating temperature range from -40°C to 85°C

Product Advantages

Allows for expansion of I/Os for microcontrollers with limited pins

Supports multiple devices on the same bus

Enables design flexibility through voltage range and temperature specifications

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Interrupt Output: Yes

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

Mounting Type: Surface Mount

Quality and Safety Features

Robust operation in extended temperatures

Complies with Texas Instruments’ manufacturing standards

Compatibility

Compatible with various microcontrollers that support I2C or SMBus

Suitable for surface mount technology

Application Areas

Industrial control systems

Server farms

Telecommunications

Portable electronics

Gaming consoles

Product Lifecycle

Not For New Designs (potential phase-out or obsolescence in progress)

Check manufacturer for replacement or upgrade options

Several Key Reasons to Choose This Product

Enhances I/O port availability for intricate designs

Easy integration with industry-standard I2C and SMBus protocols

Efficient power usage suitable for portable and battery-operated devices

Adaptability to various environments due to a wide operating temperature range

Reduced system complexity through simplified design for additional I/Os

Reputable manufacturer with a history of reliable product quality