Peering inside THE infamous 555 timer IC to have a look #@what_makes_it_tick (coined it! :P )
This was derived from an old ass hand drawn schematic so it may not even be accurate... for that matter, it could be the recipe for cheesecake or the final results of the Manhattan Project, who knows.
EC doesn't seem to give me enough space to pile on the "exterior" components so it will work in astable or bistable modes of operation. I'll keep trying on a copy and post if I somehow shoehorn the rest of that crap in there.