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PCA9675BQ from NXP,NXP Semiconductors

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PCA9675BQ

Manufacturer: NXP

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

Partnumber Manufacturer Quantity Availability
PCA9675BQ NXP 640 In Stock

Description and Introduction

Remote 16-bit I/O expander for Fm I2C-bus with interrupt The **PCA9675BQ** from NXP Semiconductors is a versatile, low-power I²C bus-controlled GPIO expander designed to simplify system design by extending the number of available input/output (I/O) pins. With 16 configurable GPIO ports, it enables efficient interfacing between microcontrollers and peripheral devices, reducing the need for additional hardware.  

Operating at a voltage range of 1.8V to 5.5V, the PCA9675BQ is compatible with a wide variety of logic levels, making it suitable for mixed-voltage applications. Its I²C interface supports standard (100 kHz) and fast (400 kHz) modes, ensuring seamless integration into existing communication architectures.  

A key feature of this device is its interrupt output capability, which alerts the host controller to input state changes, minimizing polling overhead. Additionally, its low standby current consumption enhances energy efficiency in battery-powered systems.  

Housed in a compact **HVQFN24** package, the PCA9675BQ is ideal for space-constrained designs, including IoT devices, industrial controls, and consumer electronics. Its robust performance and ease of configuration make it a reliable solution for expanding I/O capabilities while maintaining system simplicity.  

For detailed specifications and application guidance, consult the official datasheet to ensure proper implementation in your design.

Application Scenarios & Design Considerations

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

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