PCA9557PW,118 - NXP USA Inc.

Manufacturer Part Number

PCA9557PW,118

Manufacturer

nxp-semiconductors

Introduction

The PCA9557PW,118 is an 8-bit I/O expander with an I2C and SMBus interface, designed for surface mount applications.

Product Features and Performance

I2C and SMBus interface for easy integration

8-bit I/O expander increases GPIOs

Open-drain and push-pull output types

Power-on reset (POR) feature

Supports clock frequencies up to 400 kHz

Wide voltage supply range from 2.3V to 5.5V

Operating temperature range from -40°C to 85°C

Product Advantages

Flexible I/O expansion for microcontrollers

Suitable for low-power applications

Compatible with various bus systems

Easy to mount in compact spaces thanks to TSSOP packaging

Key Technical Parameters

Number of I/O: 8

Interface: I2C, SMBus

Output Type: Open Drain, Push-Pull

Current Output Source/Sink: 10mA, 20mA

Clock Frequency: 400 kHz

Voltage Supply: 2.3V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Mounting Type: Surface Mount

Package / Case: 16-TSSOP

Quality and Safety Features

Built-in power-on reset minimizes startup errors

Robust operating temperature range ensures reliability in varying conditions

Compatibility

Easily integrates with microcontrollers supporting I2C or SMBus

Versatile voltage compatibility for use in a wide range of applications

Application Areas

Industrial control systems

Home automation

Robotics

Servers and data centers

Portable electronics

Product Lifecycle

Product Status: Active

The PCA9557PW,118 is not nearing discontinuation, with ongoing support and availability

Several Key Reasons to Choose This Product

Provides additional I/O ports with minimal changes to existing design

Supports high-speed I2C interface for rapid data communication

Low power consumption is ideal for battery-operated devices

Wide operating temperature range fits harsh environment applications

Straightforward integration with a broad range of microcontrollers

TSSOP packaging suitable for surface mounting saves space on PCBs