digital clock circuit using 7476

[sujith mu]

digital clock circuit using 7476

Introduction

We know that 60 seconds equal to 1 minute and 60 minutes equal to 1 hour. Hence the minute section is drived by second section and hour section by the minute section. Each of the minute and second section has been designed to give a count from 00 to 59 after which it resets to 00. and the hour section to give a count from 00 to 23 hours after which it resets to 00. For each cycle of 00 to 59 in second section the minute section increases its count by 1. Similarly for each cycle of 00 to 59 in minute section the hour section increases it s count by 1. In this way when the clock reaches 23hrs. 59mins. 59secs. each of the section resets to 00 giving us a display 00.00.00 popularly known as the 0th hour. * *
Now, without wasting any time we straightaway move into the discussion with our project with emphasis on different sections considering the
modules.