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PCA9544APWR from TI,Texas Instruments

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PCA9544APWR

Manufacturer: TI

4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC

Partnumber Manufacturer Quantity Availability
PCA9544APWR TI 1948 In Stock

Description and Introduction

4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC The **PCA9544APWR** from Texas Instruments is a low-voltage, 4-channel I²C switch designed to enable communication between multiple I²C buses. This component is particularly useful in systems where multiple I²C slave devices share the same address, allowing seamless bus expansion without address conflicts.  

Featuring bidirectional voltage-level translation, the PCA9544APWR supports voltage ranges from 1.8V to 5.5V, making it compatible with a wide variety of I²C devices. Its interrupt inputs allow the host microcontroller to monitor events on downstream buses, improving system responsiveness.  

The device operates with a simple I²C command structure, enabling users to select any of the four channels individually or in combination. Built-in pull-up resistors on the SDA and SCL lines simplify PCB design while ensuring reliable signal integrity.  

Housed in a compact TSSOP-20 package, the PCA9544APWR is ideal for space-constrained applications such as embedded systems, industrial controls, and consumer electronics. Its robust ESD protection enhances durability in demanding environments.  

With its combination of flexibility, efficiency, and ease of integration, the PCA9544APWR serves as a reliable solution for managing complex I²C bus architectures.

Application Scenarios & Design Considerations

4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC

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