What are the differences between SparkFun Level Translator Breakout - PCA9306 and SparkFun Logic Level Converter - Bi-Directional?
Hi Portal.
Both do essentially the same thing but one was purpose made for I2C.
The PCA9306 was designed specifically for I2C and will probably work in most non I2C applications.
The Bi-directional level shifter is a more general part and works on a wide variety of applications. It also has two more channels than the PCA9306.
If you’re working with I2C, the PCA9306 would be ideal but either will work.