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PCA9673DK from NXP,NXP Semiconductors

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PCA9673DK

Manufacturer: NXP

Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset

Partnumber Manufacturer Quantity Availability
PCA9673DK NXP 64 In Stock

Description and Introduction

Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset The **PCA9673DK** from NXP Semiconductors is a versatile **I/O expander** designed to enhance system flexibility by providing additional GPIO (General-Purpose Input/Output) ports via an I²C-bus interface. This compact and efficient component is ideal for applications where microcontroller I/O pins are limited, enabling seamless expansion in embedded systems.  

Featuring **16-bit remote I/O ports**, the PCA9673DK supports both input and output configurations, making it suitable for interfacing with sensors, switches, LEDs, and other peripheral devices. Its **low standby current consumption** ensures energy efficiency, particularly in battery-powered or power-sensitive designs.  

The device operates at **2.3V to 5.5V**, accommodating a wide range of voltage levels, and includes built-in **interrupt functionality** to alert the host controller of input state changes, reducing polling overhead. With its **fast-mode I²C interface (up to 400 kHz)**, the PCA9673DK ensures reliable and high-speed communication.  

Designed for robustness, the PCA9673DK is well-suited for industrial control, consumer electronics, and automation systems. Its small **TSSOP package** optimizes board space while maintaining performance. Engineers seeking a reliable, scalable I/O expansion solution will find the PCA9673DK a practical choice for modern electronic designs.

Application Scenarios & Design Considerations

Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset

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