12 Hour Digital Clock Circuit Diagram. For 24h it will count from 00 to 23. When no buttons are pressed the circuit will display the current time starting at 12 00 on reset.
Pressing sw1 will cause seconds to be displayed. The specialty of this clock is that it has very low power consumption and condensed layout. We will be using only basic cmos ics and pure logic to build the circuit yet this circuit can be easily replicated by beginners in electronics.
This circuit here 24 hour digital clock and timer circuit is a simple circuit with two different applications as per reflected through the name 24 hour clock and a timer.
The time is set by pressing sw2 to advance minutes and sw3 to advance hours. As may be witnessed in the given diagram the heart of the circuit is formed by the ic1 lm8560 which is assigned with the following outputs terminals. Now let s learn how the proposed digital clock circuit functions. When no buttons are pressed the circuit will display the current time starting at 12 00 on reset.