Digital Clock Without Microcontroller
This circuit is designed to display the time in hours and minutes format, and is wired such that it functions in 24-hour mode. For this purpose, this circuit make use of six 74LS90 decade counters (in figure,IC1 through IC6), four 74LS247 BCD to 7-segment decoders/drivers (IC7 through IC10) and four LT S542 common anode displays (DIS1 through DIS4). In addition, passive components like...
