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Digital Clock Circuit Design

L

Lance

Jan 1, 1970
0
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
 
J

Julius Caesar

Jan 1, 1970
0
Lance said:
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
 
B

Bill Bowden

Jan 1, 1970
0
Lance said:
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
 
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