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PCA9543AD from NXP,NXP Semiconductors

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15.625ms

PCA9543AD

Manufacturer: NXP

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

Partnumber Manufacturer Quantity Availability
PCA9543AD NXP 1425 In Stock

Description and Introduction

2-channel I虏C-bus switch with interrupt logic and reset The **PCA9543AD** from NXP Semiconductors is a dual bidirectional I²C-bus multiplexer designed to enable communication between multiple I²C devices sharing the same bus. This compact and efficient component allows two downstream I²C channels to be selected independently, facilitating seamless data exchange in complex systems where multiple slave devices must coexist.  

Featuring low on-state resistance and minimal propagation delay, the PCA9543AD ensures reliable signal integrity while minimizing power consumption. Its interrupt input functionality enhances system responsiveness by detecting changes in downstream devices, enabling efficient event-driven operations. The device supports standard (100 kHz) and fast-mode (400 kHz) I²C protocols, making it versatile for various applications.  

With a supply voltage range of 2.3V to 5.5V, the PCA9543AD is suitable for both low-power and standard-voltage designs. It includes built-in power-on reset and ESD protection, ensuring robust performance in industrial, automotive, and consumer electronics applications.  

The PCA9543AD simplifies system design by reducing bus contention and addressing conflicts, making it an ideal solution for embedded systems, sensor networks, and multi-device communication architectures. Its small footprint and high reliability make it a preferred choice for engineers seeking efficient I²C bus management.

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