Hello. I have the question on overvoltage protection on BF704.
There is current limiting resistor (100kohm) and Protection diode on the Digital input.
Sometimes, clamping voltage is over the maximum rating (3.63V < 3.73V (3.3V(VCC)+0.43V(Diode Forward voltage at Low temp.))) according to VCC tolerance and temperature as the worst case.
- Is this (+0.1V of maximum rating) allowable on BF704?
- Is there the internal clamping diode on BF704?
On the datasheet, there is comment about maximum rating 'Operation beyond the maximum operating conditions for extended periods may affect product reliability.'
I am wondering how to consider above description. (extended periods)