PCA9673BQManufacturer: NXP Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9673BQ | NXP | 670 | In Stock |
Description and Introduction
Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset The **PCA9673BQ** from NXP Semiconductors is a versatile 8-bit I/O expander designed to enhance system flexibility in microcontroller-based applications. Utilizing the I²C-bus interface, it allows for efficient communication with minimal wiring, making it ideal for space-constrained designs.  
This component features **8 quasi-bidirectional I/O pins**, each configurable as an input or output, enabling seamless integration with sensors, switches, and other peripherals. Its **low standby current consumption** ensures energy efficiency, while the **interrupt output** pin facilitates real-time monitoring of input changes, reducing the need for continuous polling.   The PCA9673BQ operates across a **wide voltage range (2.3V to 5.5V)**, supporting compatibility with various logic levels. With built-in **noise filtering** and robust ESD protection, it delivers reliable performance in industrial, automotive, and consumer applications.   Designed for ease of use, the PCA9673BQ simplifies system expansion without requiring additional GPIO pins from the host microcontroller. Its compact **HVQFN16 package** ensures a small footprint, making it suitable for high-density PCB layouts.   Whether used in display control, keypad interfacing, or general-purpose I/O expansion, the PCA9673BQ provides a cost-effective and scalable solution for modern embedded systems. |
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Application Scenarios & Design Considerations
Remote 16-bit I/O expander for Fm I2C-bus with interrupt and reset
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