2 ms·Depends on the MCU, but generally STM32 is 1.7-3.6Vby the__alchemist 1y agoDepends on the MCU, but generally STM32 is 1.7-3.6V0x457 1y agoSTM32 is 3v3 logic.the__alchemist 1y agoNot necessarily; see above (Or a datasheet)