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PCA9518AD from NXP,NXP Semiconductors

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PCA9518AD

Manufacturer: NXP

Expandable 5-channel I2C-bus hub

Partnumber Manufacturer Quantity Availability
PCA9518AD NXP 139 In Stock

Description and Introduction

Expandable 5-channel I2C-bus hub The **PCA9518AD** from NXP Semiconductors is a versatile bidirectional I²C bus repeater designed to extend communication distances and support multiple devices on the same bus. This component is particularly useful in applications where signal integrity may degrade due to long traces, high capacitance, or voltage level mismatches between different sections of the bus.  

Featuring low-voltage operation, the PCA9518AD supports voltage translation between 2.3V and 5.5V, making it compatible with a wide range of I²C devices. Its automatic direction sensing eliminates the need for additional control signals, simplifying system design. The device also incorporates noise filtering and hysteresis to enhance signal robustness in noisy environments.  

With a compact SOIC-8 package, the PCA9518AD is well-suited for space-constrained applications such as industrial control systems, consumer electronics, and embedded computing. Its ability to isolate bus segments helps prevent lock-ups and ensures reliable communication across multiple nodes.  

Engineers appreciate the PCA9518AD for its ease of integration and compliance with the I²C Fast-mode standard, offering data rates up to 400 kHz. By addressing common challenges in I²C bus design, this repeater enhances system flexibility while maintaining signal integrity.

Application Scenarios & Design Considerations

Expandable 5-channel I2C-bus hub

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