Key Topic 36: Flip-Flops

Question 1

3-36E1: A flip-flop circuit is a binary logic element with how many stable states?

A. 1
B. 2
C. 4
D. 8

Answer 1

B. 2

Question 2

3-36E2: What is a flip-flop circuit? A binary sequential logic element with ___ stable states.

A. 1
B. 4
C. 2
D. 8

Answer 2

C. 2

Question 3

3-36E3: How many flip-flops are required to divide a signal frequency by 4?

A. 1
B. 4
C. 8
D. 2

Answer 3

D. 2

Question 4

3-36E4: How many bits of information can be stored in a single flip-flop circuit?

A. 1
B. 2
C. 3
D. 4

Answer 4

A. 1

Question 5

3-36E5: How many R-S flip-flops would be required to construct an 8 bit storage register?

A. 2
B. 4
C. 8
D. 16

Answer 5

C. 8

Question 6

3-36E6: An R-S flip-flop is capable of doing all of the following except:

A. Accept data input into R-S inputs with CLK initiated.
B. Accept data input into PRE and CLR inputs without CLK being initiated.
C. Refuse to accept synchronous data if asynchronous data is being input at same time.
D. Operate in toggle mode with R-S inputs held constant and CLK initiated.

Answer 6

D. Operate in toggle mode with R-S inputs held constant and CLK initiated.