MULTIPLEXED CLOCK DlSPLAY


Posted on Feb 6, 2014

Multiplexed display suitable for LED readouts is provided by circuit using TTL counters to count 60-Hz Iine.When count reaches o`clock, flip-flop M is set on evely cycle. Gate G3 then detects when time goes to 13 o`clock, and clears shift register.Carry flip-flop remains set, so 1 is loaded into hours digit to accomplish transition from 12:59:59 to 1:0..


MULTIPLEXED CLOCK DlSPLAY
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