Select the statement that best describes the two possible output states of a flip-flop.

The Q output is LOW and the output is LOW.

The Q output is LOW and the output is HIGH.

The Q output is HIGH and the output is LOW.

The Q output is HIGH and the output is HIGH.

Both B and C

Which of the following is the most common use of flip-flops?

Pulse steering circuits

Switch debouncing

Storage registers

Combinatorial logic arrays

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Question 31 pts

How many shift pulses would be required to serially shift the contents of one six-stage register to another?

8

7

5

6

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Question 41 pts

The symbol for a flip flop has a small triangle - and no bubble - on its clock (CLK) input. The triangle indicates:

the FF is edge-triggered and can only change states when the clock goes from 1 to 0.

the FF is edge-triggered and can only change states when the clock goes 0 to 1.

the FF is level active and can only change states when the CLOCK = 1.

the FF is an active LOW device and can only change states when the CLOCK = 0.

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Question 51 pts

A negative-edge-triggered J-K flip-flop is presently in the CLEAR state. Which of the following input conditions will cause it to change states?

CLK = PGT, J = 1, and K = 0

CLK = NGT, J = 1, and K = 0

CLK = PGT, J = O, and K = 1

CLK = NGT, J = O, and K = 1

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Question 61 pts

The difference between a D-latch and an edge-triggered D-type flip-flop is that the latch:

always "latches" the Q output to the D input regardless of other inputs.

triggers on either the rising or falling edge of an ENABLE signal rather than the CLK input logic level.

always "latches" the Q output to the complement of the D input regardless of other inputs.

is controlled by the logic level at its ENABLE input rather than a CLK transition.