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“While most of my microcontroller designs run on 3.3 volts there is still the ocasional 5 volt design. Or I do something with an Arduino. So the need may arise to interface between logic working at different voltage levels …
Content for PCA9306
The PCA9306 is a dual bidirectional voltage translator for the I2C-bus and SMBus. It works at a range of voltages between 1.0 and 5.0V and doesn't require a direction pin to function.
See alsoI2C