PCA9557PWR - Texas Instruments

Manufacturer Part Number

PCA9557PWR

Manufacturer

Texas Instruments

Introduction

PCA9557PWR is an 8-bit I/O expander with an I2C and SMBus interface.

Product Features and Performance

8-bit I/O expander

I2C and SMBus compatible interface

No interrupt output

Power-on reset (POR) feature

Configurable output types: open drain or push-pull

10mA / 25mA current output source/sink capability

Supports up to 400 kHz clock frequency

Wide supply voltage range: 2.3V to 5.5V

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

Surface mount 16-TSSOP package

Product Advantages

Enables GPIO expansion for microcontrollers

Offers reduced power consumption with POR feature

Flexible I/O configuration options

Compatible with a broad range of supply voltages

Suitable for harsh temperature environments

Ease of mounting with TSSOP package

Key Technical Parameters

Number of I/O: 8

Interface compatibility: I2C, SMBus

Clock Frequency: 400 kHz

Supply Voltage Range: 2.3V to 5.5V

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Compliant with industrial quality and safety standards

Compatibility

Suitable for use with microcontrollers lacking sufficient GPIO

Interfacing compatible with standard I2C and SMBus systems

Application Areas

Embedded systems

Industrial control

Consumer electronics

Server motherboards

Telecommunications

Product Lifecycle

Current product status: Active

Regular updates on discontinuation status and new generation replacements provided by Texas Instruments

Several Key Reasons to Choose This Product

Scalable I/O expansion without the need for additional microcontroller pins

Supports standard communication interfacing for easy integration

Robust operating temperature range for greater reliability

Flexibility in choosing output type depending on the application needs

Highly recognized manufacturer with reliable support and documentation

Availability in Tape & Reel packaging for efficient assembly processes