Help with Logic Digital Clock

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Datz Me

New Member
Is there Digital clock which is not using programmable IC? Can you help me finding this circuit.
I found one but it used LM8560, is there available IC like this and if not is there any replacements?
Thank you all
 
It would probably be just as cheap to buy a complete digital clock
 
LM8368.... on a google search (LM8560 equivalent)

here's an idea.... how about a shift register (74hc595 is cheap) to count the pulses from a standard anologue clock mechanism and make a 72 led clock (check the 72 led watches on ebay).

i bought 20 of these 8bit counters (they were cheaper than decade counters) to do seconds, mins and hours but havn't made it yet.

another option would be to count into a divider circuit to make one pulse per minute, that would reduce the number of counter IC's needed. (or a reed switch and tiny neo magnet on the seconds arm).
 
ICM 7217, but obsolete, was available as up/down counter(9999) or timer(5959)
Best part was that these had equal and zero output pins. Comes handy for rolling the count at any count u set.

Also had presetting facility.

Gajanan Phadte
 
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