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PCA9701PW from NXP/PHILLIS,NXP Semiconductors

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PCA9701PW

Manufacturer: NXP/PHILLIS

18 V tolerant SPI 16-bit/8-bit GPI with INT

Partnumber Manufacturer Quantity Availability
PCA9701PW NXP/PHILLIS 553 In Stock

Description and Introduction

18 V tolerant SPI 16-bit/8-bit GPI with INT The **PCA9701PW** from NXP Semiconductors is a versatile 16-bit I²C-bus GPIO expander designed to enhance system flexibility in embedded applications. Featuring an industry-standard I²C interface, this component allows microcontrollers with limited I/O pins to expand their connectivity efficiently.  

With 16 configurable GPIO pins, the PCA9701PW supports both input and output modes, enabling seamless integration with sensors, switches, LEDs, and other peripherals. Each pin can be individually programmed, providing precise control over system functionality. The device operates at a supply voltage range of 2.3V to 5.5V, making it compatible with a wide variety of low-voltage and standard logic systems.  

The PCA9701PW includes internal pull-up resistors, reducing the need for external components and simplifying PCB design. Its interrupt output feature enhances responsiveness by alerting the host microcontroller to input changes, minimizing polling overhead. Additionally, the device supports hot insertion, ensuring stable operation in dynamic environments.  

Housed in a compact TSSOP-24 package, the PCA9701PW is ideal for space-constrained applications such as industrial control, consumer electronics, and IoT devices. Its robust design and ease of use make it a reliable choice for expanding digital I/O capabilities in modern embedded systems.

Application Scenarios & Design Considerations

18 V tolerant SPI 16-bit/8-bit GPI with INT

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