Exam 5: Flip-Flops and Related Devices

Generally, a flip- flop's hold- time is short enough to allow its output to be determined by the logic levels present at its synchronous control inputs just prior to the active clock transition.

Which of the following circuit parameters would be most likely to limit the maximum operating frequency of an IC flip- flop?

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

Which statement best describes the action of a NAND gate latch?

Which of the following flip- flop timing parameters indicates the time it takes a Q output to respond to an input?

A small triangle at the CLK input on a standard flip- flop symbol indicates that any change in the output is triggered by a clock transition.

A "D" flip- flop with a PGT clock is in the CLEAR state. Which of the following input actions will cause it to change states?

_____flip- flop inputs override all other inputs.

Which of the following statements regarding the small triangles in the IEEE/ANSI symbols for flip- flops is TRUE?

A one- shot has a stable output state that is essentially interrupted by the trigger input. Once interrupted, the output goes to the opposite state for a specific amount of time.

Forcing the SET input LOW on a NAND gate latch generates outputs of:

A primary difference between a D flip- flop and the J- K and S- C flip- flops is the fact that:

Which of the following logic devices is specifically designed to produce clean, fast- changing output signals?

What is the output frequency of a three- stage binary counter with an input clock frequency of 80 kHz?

74xxx standard logic chips are found in the megafunction library of the Quartus II development software.

Which of the following best describes the normal logical operation of a NOR gate latch?

The new IEEE/ANSI symbols for latches and flip- flop use the letter "C" to denote:

A_____accepts slow- changing input signals and generates clean, fast- transition output signals.

The Q output of a flip- flop is normally HIGH when the device is in the "CLEAR" or "RESET" state.

Which of the following best describes the characteristics of a MOD- 16 counter?