To tell the truth I don't have a project drawing at the moment. I've simulated the sample circuit in EWB but the schematic got lost in reinstalling wine
My idea is to use the PC's parallel port with the combination of the 4514 to control a 4x4x4 led cube.
I have the cube finished. The sections are controlled by Gnd and the individual (16) leds at the bottom with Vcc from a source that's controlled with a NPN transistor which is controlled by the 4514
It sound confusing... I will draw the schematic that I have in my head in about 30min.