How to built a counter circuit using jk flip-flop and 555 timer.

[dempuo]

hello,i am shazril from ungku omar polytechnic,perak,malaysia.i just want to ask how to built a counter circuit count 12,10,8,6 and 4 and back to 12 using jk flipflop and 555 timer ??

thank you.

[benji]

use the 555 as the first jk clock source, as long as your biggest num is 12 then you need 4 jks
cuz 12 == 1100
the first jk out clocks the second jk and so on if you want to count regularly,,
if now you have to figure out how to do clocking.

[Admin]

You could just buy a counter IC