Originally Posted by xfuego

A basic electronics lesson for the child.

Piggybacking a chip means placing a chip onto another one where they share the same inputs and outputs. If you do this, the you have 2 chips a) loading the circuit and b) outputing different signals onto the same line. The next chip(s) that those outputs go to will not be able to to discern what signal is the correct signal and what isn't. I suppose it is possible that a signal can be held a little longer in a particualr state by a piggybacked chip, but you still run the risk of blowing both chips up, either from improper bias due to unplanned loading, an unbalanced circuit, loading the preceding chip(s), from ESD, or a myriad of other causes. It's a bad idea period. Replacing the chip with another one or reprogramming the existing chip, is the best way to go. Piggybacking, at best, is Russian Roulette.

22 years old huh? Well now, I knew I should have pulled out of your skanky assed mother when I was up in Great Lakes. The best part of you ran down your mother's sh*t stained crack.