103 Sequential Logic

Question 1

Circuit diagram for a NOT-S NOT-R latch

Answer 1

Question 2

Answer 2

Question 3

Table sequence for a NOT-S NOT-R latch

Answer 3

Question 4

For a NOT-S NOT-R latch, what identity must be true for Q and NOT-Q

Answer 4

Question 5

Answer 5

Question 6

Two problems with a NOT-S NOT-R latch

Answer 6

Question 7

Circuit diagram for a clocked SR latch

Answer 7

Question 8

Answer 8

Question 9

For an clocked SR latch, which logic input condition for S and R changes Q?

Answer 9

Question 10

For a clocked SR latch, what is the logic of the clock that changes Q?

Answer 10

Question 11

For a clocked SR latch, what is disallowed input state of S and R?

Answer 11

Question 12

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Question 13

For a D-type flip-flop, when is input D transferred to Q

Answer 13

Question 14

For a D-type flip-flop, what does input S do?

Answer 14

Question 15

For a D-type flip-flop, what does input R do?

Answer 15

Question 16

For a D-type flip-flop, show how the following clock and data signals create output Q and NOT-Q

Answer 16

Question 17

For a D-type flip-flop, show how the following clock, Set and Reset signals create output Q and NOT-Q

Answer 17

Question 18

Complete the transition gate circuit diagram

Answer 18

Question 19

How does a transition gate circuit creates a short pulse output?

Answer 19

Question 20

Use the graphs to show how a transition gate circuit creates a short output pulse

Answer 20

Question 21

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Question 22

Complete the diagram

Answer 22

Question 23

Show the outputs Q and NOT-Q for a 1-bit up counter

Answer 23

Question 24

Complete the diagram of a 2-bit up counter

Answer 24

Question 25

Show the outputs Q_A, NOT-Q_A, Q_B, NOT-Q_B for a 2-bit up counter

Answer 25

Question 26

Label the following diagram of a four-bit binary ripple counter

Answer 26

Question 27

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Question 28

Which circuit is 'rising edge triggered' and which is 'falling edge triggered'?

Answer 28

Question 29

Show how to connect two four-bit counters together to make a eight-bit counter

Answer 29

Question 30

Complete the table -

Answer 30