Simple 12 Hour Digital Clock Circuit Diagram. The output for driving the display duplex model numbers pin 1 14 2. For 12h it will count from 00 to 11.
The 1 s of seconds receives the clock signal at the 74ls90 decade counter it counts 0 9 then clocks a 74ls93 for the 10 s of seconds. How to build a clock circuit with a 555 timer. 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.
The output for driving the display duplex model numbers pin 1 14 2.
For 24h it will count from 00 to 23. The time is set by pressing sw2 to advance minutes and sw3 to advance hours. Pulse generator for digital clock. Now let s learn how the proposed digital clock circuit functions.
