CAT9555WI-T1 - onsemi

Manufacturer Part Number

CAT9555WI-T1

Manufacturer

onsemi

Introduction

Interface I/O Expander aimed to increase the number of IOs in various electronic applications

Product Features and Performance

16 I/O ports

Integrated I2C and SMBus interface

Interrupt Output functionality

Power-On Reset (POR) feature

Push-Pull Output Type

Supports upto 400 kHz clock frequency for communication

Operating Voltage ranges from 2.3V to 5.5V

Designed for operation in a wide temperature range -40°C to 85°C

Surface Mount, 24-SOIC package for PCB assembly

Product Advantages

Expands the IO capability of microcontrollers

Integrated POR for reliable operation following power-up

Interrupt Output to handle input signals asynchronously

Wide voltage range offers flexibility in various applications

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Interrupt Output: Yes

Current - Output Source/Sink: 10mA, 24mA

Clock Frequency: 400 kHz

Voltage - Supply: 2.3V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Package / Case: 24-SOIC (0.295", 7.50mm Width)

Quality and Safety Features

Built-in POR ensures stable operation after voltage variations

Compatibility

Compatible with I2C and SMBus protocols

Suitable for use with various microcontrollers

Application Areas

Automation systems

Consumer electronics

Industrial control

Product Lifecycle

Obsolete status

Alternatives or upgrades should be sought due to discontinuation

Several Key Reasons to Choose This Product

Voltage flexibility suitable for various electronic applications

Suitable for increasing IO capability without changing the main IC

The extended temperature range makes it viable for industrial use

Integrated interrupt feature allows for improved asynchronous signal handling

Simplified system expansion with I2C/SMBus interface compatibility