Digital Clock Circuit Design

[Lance]

Can anyone point me to a website which highlights a Digital Clock Circuit
design using 7400 TTL series chips?


I plan to have 'hours', 'minutes', and 'seconds' on this clock.



Thanks,

Lance

 

[Julius Caesar]

Can anyone point me to a website which highlights a Digital Clock Circuit
design using 7400 TTL series chips?


I plan to have 'hours', 'minutes', and 'seconds' on this clock.



Thanks,

Lance

Man, it's so easy to build one... Use the 4511 (counter + latch), and a
few of logical gates will help you to increase minutes after 60 seconds,
etc...

JC

 

[Bill Bowden]

Can anyone point me to a website which highlights a Digital Clock Circuit
design using 7400 TTL series chips?


I plan to have 'hours', 'minutes', and 'seconds' on this clock.



Thanks,

Lance

There is a digital clock using the newer 74HC parts here:

http://ourworld.compuserve.com/homepages/Bill_Bowden/dclock.htm

The basic clock uses 7 ICs and the display uses another 5.
Two of the display digits are multiplexed for minutes or
seconds so you only need 4 digits for hours, minutes and seconds.

-Bill