Connecting JK flip flop to decoder

Thread Starter

Jade Rietmann

Joined Aug 31, 2015
Hi Guys and Girls.

I am busy designing an Odd sequence 3 bit up down counter, I have got all my expressions and have started simulating on multisim but I am not sure how to connect my outputs of my JK flip flops (Q and Q-) to my decoder(74LS47N).

Any help or advice will be appreciated.


Joined Dec 29, 2010
There are only 3 bits output from the JK namely Q0, Q1 and Q2. Connect Q0 to A and Q1 to B and Q2 to C inputs of 7447. Then just ground D inputs. The display would display 0 to 7 accordingly.