Question 16 A K-F flip-flop works as follows. If KF=00, the next state is 1. If
ID: 1840123 • Letter: Q
Question
Question 16
A K-F flip-flop works as follows. If KF=00, the next state is 1. If KF=01, the next state is the same as the present state. For KF=10, the next state is the complement of the present state. When KF=11, the next state is 0. (note: I have changed it slightly from the problem we did in class!)
Complete the table with KF inputs needed for the various state changes. Use don't cares whenever possible!!
Q Q+ K F
0 0
0 1
1 0
1 1
For present state 0 and next state 1, what is the best input for F?
A.
1
B.
0
C.
X
D.
None of these
Question 17
A K-F flip-flop works as follows. If KF=00, the next state is 1. If KF=01, the next state is the same as the present state. For KF=10, the next state is the complement of the present state. When KF=11, the next state is 0. (note: I have changed it slightly from the problem we did in class!)
Complete the table with KF inputs needed for the various state changes. Use don't cares whenever possible!!
Q Q+ K F
0 0
0 1
1 0
1 1
For present state 1 and next state 0, what is the best input for K?
A.
1
B.
None of these
C.
0
D.
X
Question 18
A K-F flip-flop works as follows. If KF=00, the next state is 1. If KF=01, the next state is the same as the present state. For KF=10, the next state is the complement of the present state. When KF=11, the next state is 0. (note: I have changed it slightly from the problem we did in class!)
Complete the table with KF inputs needed for the various state changes. Use don't cares whenever possible!!
Q Q+ K F
0 0
0 1
1 0
1 1
For present state 1 and next state 0, what is the best input for F?
A.
0
B.
1
C.
X
D.
None of these
Question 19
A K-F flip-flop works as follows. If KF=00, the next state is 1. If KF=01, the next state is the same as the present state. For KF=10, the next state is the complement of the present state. When KF=11, the next state is 0. (note: I have changed it slightly from the problem we did in class!)
Complete the table with KF inputs needed for the various state changes. Use don't cares whenever possible!!
Q Q+ K F
0 0
0 1
1 0
1 1
For present state 1 and next state 1, what is the best input for K?
A.
None of these
B.
1
C.
0
D.
X
Question 20
A K-F flip-flop works as follows. If KF=00, the next state is 1. If KF=01, the next state is the same as the present state. For KF=10, the next state is the complement of the present state. When KF=11, the next state is 0. (note: I have changed it slightly from the problem we did in class!)
Complete the table with KF inputs needed for the various state changes. Use don't cares whenever possible!!
Q Q+ K F
0 0
0 1
1 0
1 1
For present state 1 and next state 1, what is the best input for F?
A.
X
B.
0
C.
1
D.
None of these
A.
1
B.
0
C.
X
D.
None of these
Explanation / Answer
16)B
17)C
18)C
19)C
20)A