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Power On reset behavior of STM32L071KZU3

Question asked by Uma Sundaram on May 16, 2018
Latest reply on May 16, 2018 by Clive Two.Zero

             We are using STM32L071KZU3 MCU in our design and providing 1.8V to VDD,VDDIO2 and VDDA domains of MCU.
         The on-board source voltage to MCU is exactly 1.78V(instead of 1.8V).
During power-up, we could see the reset pin of MCU is being held low.
   Also during power-up if we provide 1.82V to the MCU externally, the MCU reset is being released high.


Can you please let me know,how input voltage  influences MCU reset behaviour.