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PCA9306: Same voltage at both inputs of PCA9306

Part Number: PCA9306

Dear Team,

May I know the minimum difference between Vref1 and Vref2?

What will happen if both the voltages are same.

I have an Arduino Nano BLE board and a DUT . The level shifter is present in between Arduino and DUT.

In one operating condition DUT output will be 1.8V no issues Arduino Nano BLE 33 is working at 3.3V

But in another operating condition DUT output will be 3.3V at that time both the inputs of the level shifter will be 3.3V.

Don't know Arduino will be able to read the data from DUT.

Regards

HARI