just to make sure that you don't get brown outs I would connect a LM7805 or buck ic to the 9V supply and connect all the 5V ic's to it. You cant overdo it with the decoupling caps.
just to make sure that you don't get brown outs I would connect a LM7805 or buck ic to the 9V supply and connect all the 5V ic's to it. You cant overdo it with the decoupling caps.