Microchip gives a maximum voltage limit of about 13V on the MCLR pin of their Flash microcontrollers. But is there any kind of built-in limiter like a zener to protect the pin? All other pins (except the open drain one) got the classic diode protection to Vcc to protect the pin, as long as the current is limited to 25mA or so. The same question also apply to the open drain pin.
Thanks in advance!
Tom