Hello everybody, I am doing a project on building a digital clock. Now I have the crystal oscillator 4Mhz already. I would like to know how to divide the frequency to 1 hz since the clock of the digital clock need to be 1 Hz. Anyone who has some idea plz tell me?
PS. I have found some IC's that can divide the frequency ;74HC390 which can divide up to 100 but i still dont know how it work.Moreover I've found some circuit like this
http://www.elecfree.com/electronic/xtal-oscillator-frequency-by-74ls04/ .
Thank you in advance
Pete
PS. I have found some IC's that can divide the frequency ;74HC390 which can divide up to 100 but i still dont know how it work.Moreover I've found some circuit like this
http://www.elecfree.com/electronic/xtal-oscillator-frequency-by-74ls04/ .
Thank you in advance
Pete