----- Original Message ----- From: Bob Ammerman > The default is "A/D" on for a very good reason. At powerup, if the pin were > connected to an analog signal but configured as a digital input then there > would be excessive Idd current because the input was not solidly high or > low. That makes sense- I think. Do the inputs of TTL gates really create that much of a drain in mid-state? That is all I can see that might cause such a problem. Jeff -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu