PCA9546APWManufacturer: TI 4-channel I2C-bus switch with reset | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9546APW | TI | 36 | In Stock |
Description and Introduction
4-channel I2C-bus switch with reset The **PCA9546APW** from Texas Instruments is a versatile **4-channel I²C-bus multiplexer** designed to expand communication capabilities in embedded systems. This compact, low-power component enables seamless switching between multiple I²C buses, allowing a single master device to interface with multiple slave devices sharing the same address.  
Featuring bidirectional voltage-level translation, the PCA9546APW supports operating voltages from **1.8V to 5.5V**, making it compatible with a wide range of microcontrollers and peripherals. Its interrupt function facilitates efficient monitoring of downstream devices, reducing the need for continuous polling.   With a **low standby current** and robust ESD protection, this multiplexer is ideal for power-sensitive applications such as IoT devices, industrial automation, and consumer electronics. The **TSSOP-16 package** ensures a space-efficient footprint, suitable for high-density PCB designs.   Key benefits include **hot insertion support**, glitch-free switching, and compatibility with **Standard-mode (100 kHz) and Fast-mode (400 kHz) I²C** protocols. Engineers can leverage the PCA9546APW to simplify system architecture while maintaining reliable I²C communication across multiple channels.   For applications requiring scalable I²C connectivity, the PCA9546APW offers a reliable, high-performance solution. |
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Application Scenarios & Design Considerations
4-channel I2C-bus switch with reset
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