Hi there,

I agree with Mark_S.

I learned the hard way with 16f88 MCUs and the MCLR issue.

The problem is not the fact of using the MCLR pin as input, but as a combination of MCLR as input and internal OSC option.

Everytime i design some circuit that will use the internal osccilator i know i will lose the MCLR pin.

About the MCUs mentioned, i was never able to recover them.

Regards
Rui