clock and calendar using ttl ics

[agvind]

need help how to make digital clock and calendar using pure TTL ics,anybody have schematics?please...

 

[dougy83]

Sounds like homework.

Ask google for a schematic for the clock. You can then make a duplicate of the clock to act as the calendar, but you'll need to add tweak the dividers a little to get the correct days/month/etc.

 

[Pommie]

Dougy forgot to mention that it will be a very big schematic.

Mike.

 

[dougy83]

Dougy forgot to mention that it will be a very big schematic.

Did I? Ok, thanks!

 

[dr pepper]

https://www.youtube.com/watch?v=y9h0APXmbGQ

Its been done, maybe tyou could message the author for more info.

His design even saves 12 ic's by using what looks like packard bcd 7 segment displays.

Pomms was right it will be a big schem.