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PCA9543BPW from NXP,NXP Semiconductors

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PCA9543BPW

Manufacturer: NXP

2-channel I虏C-bus switch with interrupt logic and reset

Partnumber Manufacturer Quantity Availability
PCA9543BPW NXP 1909 In Stock

Description and Introduction

2-channel I虏C-bus switch with interrupt logic and reset The **PCA9543BPW** from NXP Semiconductors is a dual bidirectional I²C-bus multiplexer designed to enable communication between multiple I²C buses. This compact and efficient component allows a master device to select between two downstream I²C channels, facilitating seamless data exchange in complex systems where multiple I²C devices share the same address space.  

Featuring low on-state resistance and support for standard (100 kHz) and fast-mode (400 kHz) I²C operations, the PCA9543BPW ensures minimal signal distortion and reliable performance. Its interrupt input function provides a convenient way to monitor downstream devices, enhancing system responsiveness.  

Housed in a TSSOP-16 package, the PCA9543BPW is ideal for space-constrained applications such as embedded systems, industrial automation, and consumer electronics. With built-in voltage-level translation, it supports mixed-voltage I²C buses, simplifying interfacing between devices operating at different supply voltages.  

Key features include power-up with all switches deselected, 5 V tolerant inputs, and a wide operating voltage range (2.3 V to 5.5 V), making it a versatile choice for diverse electronic designs. The PCA9543BPW is a robust solution for expanding I²C connectivity while maintaining signal integrity and system efficiency.

Application Scenarios & Design Considerations

2-channel I虏C-bus switch with interrupt logic and reset

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