Saturday, September 28, 2019

More thoughts on i4004 clocking

Much of my concern, as expressed in previous posts like A clocking nightmare, have been based on the assumption that reflections on one of the two clock lines could cause multiple edges and thus multiple clocking of edge-sensitive circuits. While this would be correct with modern edge-clocked flip-flops, I don't think it applies to the original 4004 circuitry.