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PCA9671DK from NXP,NXP Semiconductors

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PCA9671DK

Manufacturer: NXP

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

Partnumber Manufacturer Quantity Availability
PCA9671DK NXP 309 In Stock

Description and Introduction

Remote 16-bit I/O expander for Fm I2C-bus with reset The **PCA9671DK** from NXP Semiconductors is a versatile I²C-bus controlled I/O expander designed to simplify system integration in various electronic applications. This CMOS-based device provides 8-bit general-purpose parallel input/output (GPIO) expansion, making it ideal for scenarios where additional I/O ports are needed without increasing microcontroller pin count.  

Featuring a simple I²C interface, the PCA9671DK supports standard (100 kHz) and fast (400 kHz) modes, ensuring compatibility with a wide range of host controllers. Unlike traditional I/O expanders, it eliminates the need for internal registers, reducing software overhead and simplifying control. Each I/O pin can be independently configured as an input or output, offering flexibility in system design.  

The device operates within a voltage range of 2.3V to 5.5V, making it suitable for both low-power and standard-voltage applications. Its low standby current consumption enhances energy efficiency, particularly in battery-powered systems. Additionally, the PCA9671DK includes built-in noise filtering for robust performance in electrically noisy environments.  

With its compact form factor and straightforward integration, the PCA9671DK is well-suited for industrial control, consumer electronics, and embedded systems where reliable I/O expansion is essential. Its balance of simplicity and functionality makes it a practical choice for designers seeking efficient peripheral management.

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