I’m using an Arduino clone running at 3.3V and want to interface with two different microprocessors/systems (camera lenses) via SPI - only one is connected at a time, but both on the same pins (hardware connector).
So I will need a level shifter, BUT one voltage is above the 3.3V and the other is below it. All level shifters I have found need the high-voltage side to be higher than the low-voltage side, but I have not found any information to what happens if thats not the case.
Considering your 4 Channel Logic Level shifter (#2595) (https://www.pololu.com/product/2595), what happens if the LV is 3.3V and HV is 3.0V? Does it work with such a small difference? Can it damage any components?