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PCA9547PW from NXP,NXP Semiconductors

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PCA9547PW

Manufacturer: NXP

8-channel I2C-bus multiplexer with reset

Partnumber Manufacturer Quantity Availability
PCA9547PW NXP 404 In Stock

Description and Introduction

8-channel I2C-bus multiplexer with reset The **PCA9547PW** from NXP Semiconductors is a versatile **8-channel I²C-bus multiplexer** designed to expand communication capabilities in complex embedded systems. This component enables a single master device to interface with multiple I²C slave devices by selecting one of eight bidirectional channels, effectively resolving address conflicts and simplifying bus management.  

Featuring a **low ON resistance**, the PCA9547PW ensures minimal signal degradation while supporting standard (100 kHz) and fast-mode (400 kHz) I²C operations. Its **interrupt input** allows the host controller to monitor connected devices efficiently, reducing polling overhead. The device operates across a **2.3V to 5.5V supply range**, making it compatible with a variety of logic levels.  

With **three address pins**, the PCA9547PW can be configured to one of eight unique addresses, enabling multiple multiplexers to coexist on the same bus. Its **power-on reset** function ensures a default channel selection, enhancing system reliability during startup.  

Ideal for applications such as industrial automation, consumer electronics, and sensor networks, the PCA9547PW provides a robust solution for scalable I²C communication. Its compact **TSSOP-24 package** makes it suitable for space-constrained designs while maintaining high performance.  

Engineers value this multiplexer for its **low power consumption**, ease of integration, and ability to streamline complex I²C architectures.

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