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PCA9548ADWR from TI,Texas Instruments

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PCA9548ADWR

Manufacturer: TI

8-Channel I2C Switch With Reset 24-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
PCA9548ADWR TI 760 In Stock

Description and Introduction

8-Channel I2C Switch With Reset 24-SOIC -40 to 85 # Introduction to the PCA9548ADWR from Texas Instruments  

The PCA9548ADWR is a versatile I²C-bus multiplexer and switch designed to enable communication between multiple I²C devices while maintaining signal integrity. This 8-channel device allows a master controller to select one of eight downstream I²C buses, facilitating efficient management of complex I²C systems with minimal additional wiring.  

Featuring low on-state resistance and support for standard (100 kHz) and fast-mode (400 kHz) I²C operations, the PCA9548ADWR ensures reliable data transmission across multiple channels. Its bidirectional voltage-level translation capability accommodates mixed-voltage systems, making it suitable for applications where different I²C devices operate at varying voltage levels.  

The device includes interrupt functionality, allowing the master to detect signal changes on any downstream channel without continuous polling. Additionally, its power-down mode minimizes current consumption when inactive, enhancing energy efficiency in battery-powered applications.  

Common use cases include industrial automation, consumer electronics, and embedded systems where multiple I²C peripherals must coexist on a single bus. The PCA9548ADWR’s compact TSSOP-24 package ensures space-efficient integration into modern designs.  

With robust performance and flexible configuration, the PCA9548ADWR simplifies I²C bus expansion while maintaining signal integrity and system reliability.

Application Scenarios & Design Considerations

8-Channel I2C Switch With Reset 24-SOIC -40 to 85

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