Digital clock

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sejan

Joined May 24, 2008
7
I was trying to design a digital clock.I managed to build a 60Hz clock generator using 555 timer,but now I need to divide it by 60.I can use a decade synchronous counter cascaded with a divide by six counter as i found in text book.But i just can't find the IC no of a DIV-6 counter.Can you help me please?:confused:
 

Wendy

Joined Mar 24, 2008
23,798
I was trying to design a digital clock.I managed to build a 60Hz clock generator using 555 timer,but now I need to divide it by 60.I can use a decade synchronous counter cascaded with a divide by six counter as i found in text book.But i just can't find the IC no of a DIV-6 counter.Can you help me please?:confused:

A much better alternative is a 4060, which has a quartz oscillator schematic. Take a look at this data sheet...

http://focus.ti.com/lit/ds/symlink/cd4060b.pdf

The chip will get you to a 2 hz clock with a watch crystal and a small handfull of parts. The same built in oscillator can be used as an RC oscillator also. A good website for chips is...

http://users.otenet.gr/~athsam/database.htm

If you just have to have a divide by 6 then check out the 7492.
 

mik3

Joined Feb 4, 2008
4,843
I was trying to design a digital clock.I managed to build a 60Hz clock generator using 555 timer,but now I need to divide it by 60.I can use a decade synchronous counter cascaded with a divide by six counter as i found in text book.But i just can't find the IC no of a DIV-6 counter.Can you help me please?:confused:
You can use a decade counter as a divide by 6. Connect its sixth output to the reset and it will divide by 6.
 

beenthere

Joined Apr 20, 2004
15,819
Most decade counters have a BCD output. The way to make it short count before 9 would be to AND bit 1 plus bit 2 for the reset at the count = 6.
 
I think you need to specify the tecnology which ou wish to use. It can be TTL or CMOS.

I was trying to design a digital clock.I managed to build a 60Hz clock generator using 555 timer,but now I need to divide it by 60.I can use a decade synchronous counter cascaded with a divide by six counter as i found in text book.But i just can't find the IC no of a DIV-6 counter.Can you help me please?:confused:
 
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