I have a newbie-question.
I have a design for a circuit, but before I design and order PCB and assemble it I'd like to double-check whether or not some assumptions are correct.
The circuit uses 3 signals to control some ICs; since most of them are to receive the same signal I simply wired those signals from the source to all ICs that need it. In this case the same 3-pin control signals are given to 8 ICs. Can this cause problems? Simply distributing the signal like that? If so, does it scale for more than this small example? If not, what would be the best way to distribute such a control signal among ICs?
Another question I have is that ICs designed to be bidirectional, can they be used in both directions on a circuit, if switched between these directions, in a live circuit, or should such ICs stay in one direction once in a circuit? Example; read in the values of a mux and then write to the same mux/demux.