EL E 235 Final

Question 1

d flip-flop outputs

Answer 1

Q+ = D
When D = 0, Q+ = 0
When D = 1, Q+ = 1

Question 2

t flip-flop outputs

Answer 2

Q+ = Q when T=0
Q+ = Q' when T=1

Question 3

j-k flip-flop outputs

Answer 3

When J=K=0, Q+ = Q (like toggle)
When J=0 and K=1, Q+ = 0 (which = J)
When J=1 and K=0, Q+ = 1 (which = J)
When J=K=1, Q+ = Q’ (like toggle)

Question 4

D flip-flop equation

Answer 4

Q+ = D

Question 5

T flip-flop equation

Answer 5

Q+ = T XOR Q

Question 6

J-K flip-flop equation

Answer 6

JQ’ + K’Q