Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

jk flipflop

Status
Not open for further replies.
Yes, except that you have to invert the K logic.

eg. it will toggle when J = 1 & K = 0, etc.
 
The reason for the inversion is that, if you tie J and K together, it acts as a D flipflop.
 
For JK flipflop: Q = J&~Q or ~k&Q

For JK` flipflop: Q = J&~Q or KQ
Don't understand your logic.

For a JK' flipflop after the next clock pulse:
For J=K'=1 ---- Q=1
For J=K'=0 ---- Q=0
For J=1 K'=0 -- Q=Q'
For J=0 K'=1 -- Q=Q
 
They are the same:

For J=K'=1 ---- Q=1 <=> Q = K&Q

For J=K'=0 ---- Q=0 <=> Q = K&Q ( in this case, Q=0)


For J=1 K'=0 -- Q=Q' <=> Q = J & ~Q or K&Q (in this case, the second term, K&Q, not satisfied)

For J=0 K'=1 -- Q=Q <=> Q = K &Q,

What I posted is just a short-hand version of the same thing, which makes it easier to remember... for me anyway. I know it's a little confusing. Just keep staring at it, or else just forget I posted it :)
 
Last edited:
Status
Not open for further replies.

Latest threads

New Articles From Microcontroller Tips

Back
Top