PCA9655EMTTXG - onsemi

Manufacturer Part Number

PCA9655EMTTXG

Manufacturer

onsemi

Introduction

The PCA9655EMTTXG is an I/O expander from onsemi, designed to provide additional input/output interface options via the I2C and SMBus protocols, suitable for expanding the number of I/Os in microcontroller-based projects.

Product Features and Performance

16 I/O ports

Interface compatibility with I2C and SMBus

Interrupt output enabled

Features Power-on Reset (POR)

Push-pull output type

Supports a clock frequency of up to 100 kHz

Operational across a wide voltage range of 1.65V to 5.5V

Designed for extreme temperature conditions ranging from -55°C to 125°C

Product Advantages

Increases I/O port availability in space-constrained applications

Offers flexibility with interface selection (I2C, SMBus)

Supports robust operation in harsh environmental conditions

Power-on Reset feature for improved operational reliability

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Current - Output Source/Sink: 42mA

Clock Frequency: 100 kHz

Voltage - Supply: 1.65V ~ 5.5V

Operating Temperature: -55°C ~ 125°C

Quality and Safety Features

Designed for safe operation over an extensive temperature range

Equipped with internal power-on-reset for enhanced safety and reliability

Compatibility

Compatible with any microcontroller supporting I2C or SMBus interfacing

Application Areas

Used in applications requiring additional I/Os like in embedded systems, robotics, and industrial automation

Product Lifecycle

Status: Obsolete

Note: Availability of replacements or upgrades should be verified with onsemi for support in future designs or maintenance of existing deployments.

Several Key Reasons to Choose This Product

Provides a significant increase in I/O ports using minimal physical space

Support for I2C and SMBus protocols ensures versatile interfacing options

Operational reliability even in extreme weather or industrial temperatures

Includes power-on reset for improved system integrity

Broad voltage range compatibility allows flexibility in various application environments