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PCA9548ABS from NXP,NXP Semiconductors

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PCA9548ABS

Manufacturer: NXP

8-channel I虏C-bus switch with reset

Partnumber Manufacturer Quantity Availability
PCA9548ABS NXP 5629 In Stock

Description and Introduction

8-channel I虏C-bus switch with reset The **PCA9548ABS** from NXP Semiconductors is a versatile **8-channel I²C-bus multiplexer** designed to expand the capabilities of I²C communication systems. This component enables a single master device to communicate with multiple I²C slave devices across different channels, effectively resolving address conflicts and simplifying complex bus architectures.  

Featuring **low on-resistance** and **bidirectional switching**, the PCA9548ABS ensures minimal signal degradation while maintaining reliable data transmission. Each of its eight channels can be independently selected via I²C commands, allowing for flexible system configuration. The device also includes **interrupt functionality**, enabling efficient monitoring of connected peripherals.  

With a **wide operating voltage range (1.65V to 5.5V)**, the PCA9548ABS is compatible with various logic levels, making it suitable for mixed-voltage applications. Its **small footprint** and **low power consumption** further enhance its appeal in space-constrained and energy-efficient designs.  

Common applications include **industrial automation, consumer electronics, and embedded systems**, where multiple I²C devices must coexist on a single bus. The PCA9548ABS simplifies system design while improving scalability, making it a reliable choice for engineers seeking robust I²C expansion solutions.  

For detailed specifications, refer to the official datasheet to ensure proper integration into your design.

Application Scenarios & Design Considerations

8-channel I虏C-bus switch with reset

Alternative Part Number

  • TCA9548APWR --: Pin-compatible 8-channel I2C switch with the same address scheme and functionality, widely available and often used as a direct drop-in replacement.
  • PCA9548APW --: Same silicon family in a TSSOP package; functionally identical 8-channel I2C multiplexer from the original manufacturer, differing only in package and ordering code.
  • TCA9548ARGER --: Equivalent 8-channel I2C switch in a QFN package, offering the same channel selection and reset behavior for space-constrained designs.

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