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PCA9673PW from NXP,NXP Semiconductors

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PCA9673PW

Manufacturer: NXP

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

Partnumber Manufacturer Quantity Availability
PCA9673PW NXP 1670 In Stock

Description and Introduction

Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and reset The **PCA9673PW** from NXP Semiconductors is a versatile **I²C-bus controlled 8-bit I/O expander** designed to enhance system flexibility in embedded applications. This CMOS-based device provides general-purpose remote I/O expansion via the I²C-bus, making it ideal for interfacing with microcontrollers in space-constrained environments.  

Featuring **8 quasi-bidirectional I/O pins**, the PCA9673PW supports both input and output operations with internal pull-up resistors, eliminating the need for external components. Its **low standby current consumption** ensures energy efficiency, while the **wide voltage range (2.3V to 5.5V)** allows seamless integration into various voltage domains.  

The I²C interface operates at speeds up to **400 kHz**, ensuring fast communication with the host controller. Additionally, the device includes three hardware address pins, enabling up to **eight unique addresses** on the same bus, simplifying multi-device configurations.  

With its **small TSSOP-16 package**, the PCA9673PW is well-suited for compact designs in industrial control, consumer electronics, and IoT applications. Its robust performance, combined with ease of implementation, makes it a reliable choice for expanding digital I/O capabilities in modern electronic systems.  

For detailed specifications, refer to the official datasheet to ensure proper integration into your design.

Application Scenarios & Design Considerations

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

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