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Sink/Source current direction of old 4029 counter chip.

darvin huang
Prodigy 10 points

Looking thru some old datasheets, I notice the sink and source current flow direction seems reversed from current text book.

Output Low current sink is listed as positive(ref cd4029  datasheet page 3). Text book always seems to list it as negative. Maybe someone can shed insight on this.

Thanks

dh