PCA9546ADG4Manufacturer: TI 4-Channel I2C And SMBus Switch With Reset Functions 16-SOIC -40 to 85 | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9546ADG4 | TI | 396 | In Stock |
Description and Introduction
4-Channel I2C And SMBus Switch With Reset Functions 16-SOIC -40 to 85 The **PCA9546ADG4** from Texas Instruments is a versatile **4-channel I²C bus switch** designed to enable communication between multiple I²C devices on a single bus. This component simplifies system design by allowing a master device to select one of four downstream I²C buses, reducing address conflicts and improving signal integrity in complex applications.  
Featuring **low on-state resistance**, the PCA9546ADG4 ensures minimal voltage drop and power loss during operation. Its **bidirectional switching capability** supports both 3.3V and 5V logic levels, making it compatible with a wide range of I²C peripherals. The device also includes **interrupt inputs** for each channel, enabling efficient event-driven communication.   With a **power-down mode** that disables all channels, the PCA9546ADG4 minimizes power consumption in idle states. Its compact **TSSOP-16 package** is ideal for space-constrained designs. Common applications include industrial control systems, embedded computing, and consumer electronics where multiple I²C devices must share a single bus.   Engineers appreciate the PCA9546ADG4 for its **reliable performance**, ease of integration, and robust ESD protection, making it a practical choice for managing I²C bus expansion in modern electronic systems. |
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Application Scenarios & Design Considerations
4-Channel I2C And SMBus Switch With Reset Functions 16-SOIC -40 to 85
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