On the same topic here, can anyone interpret the "state table" on the
second page of the National DM74LS447 7-segment decoder datasheet?
http://pdf1.alldatasheet.com/datasheet-
pdf/view/149198/NSC/DM74LS447N.html
I tend to think of state diagrams as belonging to things such as
counters and don't have a clue as to what to make of the one
furnished.
--Chuck