What happens to STM32F407 ADC if i give it an input voltage higher than maximum VDDA that is mentioned in datasheet equals to 3.6 volts?
It will harm the micro?
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According to the datasheet, the STM32F407 has pins that are 5V-tolerant, which have absolute max input voltage Vdd + 4V; for the other pins abs. max is 4V. Look at Table 7 under Pinouts and Pin Descriptions to see which ones are 5V-tolerant. Note that I/O pins in analog configuration (as when configured to be used as ADC inputs) are not 5V-tolerant. Note also that these are stress ratings; don't expect it to work properly at these levels.
If you read the datasheets carefully, there seems to be an interesting progress in various STM32 device families:
So it should be 3.6V considering Vdda is 3.3V else Vdda+0.3V