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A 5 V sensor output into a 3.3 V MCU

A sensor outputs 5 V logic and the MCU runs at 3.3 V. The pin is not marked 5 V tolerant. What should you do?

A.Enable the internal pull-down to absorb the extra voltageB.Connect it directly; the protection diodes are meant for thisC.Raise the MCU supply to 5 VD.Use a level shifter or divider to bring the signal to 3.3 V

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A 5 V sensor output into a 3.3 V MCU

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