1. If both inputs of an S-R NAND latch are LOW, what will happen to the output?
2. The equation for the output frequency of a 555 timer operating in the astable mode is: .
What value of C1 will be required if R1 = 1 k, R2 = 1 k, and f = 1 kHz?
3. An astable multivibrator is a circuit that:
4. The truth table for an S-R flip-flop has how many VALID entries?
5. Which of the following describes the operation of a positive edge-triggered D-type flip-flop?
6. The 555 timer can be used in either the bistable mode or the monostable mode.
7. J-K flip-flops are often used as switch debouncers.
8. The J-K flip-flop eliminates the RACE state when both the J and K inputs are HIGH.
9. A one-shot is a special type of multivibrator, which must be triggered to produce each output pulse.
10. A D-type flip-flop is constructed by connecting an inverter between the Set and Clock terminals.
11. When the S and the R inputs are both HIGH the output of an S-R NOR latch will be unpredictable.
12. When using master-slave flip-flops, the data is entered into the flip-flop on the leading edge of the clock, but the output does not change until the trailing edge of the clock.
13. A retriggerable one-shot has a pulse width of 10 ms; 3 ms after being triggered, another trigger pulse is applied. The resulting output pulse will be _________ ms.
14. The S-R, D-type, and J-K flip-flops are all examples of _________________.
15. Edge-triggered flip-flops must have _________.
16. An S-R flip-flop can be triggered by ______, ______, or ________.
17. An S-R NAND latch with both of its inputs LOW has an output that is _____________.
18. Pulse-triggered flip-flops are also called _________ flip-flops.
19. For an S-R flip-flop to be SET or RESET, the respective input must be __________.
20. One example of the use of an S-R flip-flop is as a(n) _________.
21. The toggle condition in a master-slave J-K flip-flop means that Q and will switch to their ________ state(s) at the _____________________.
22. If an input is activated by a signal transition, it is _____________.
23. Which of the following is correct for a gated D-type flip-flop?
24. When both inputs of a J-K flip-flop cycle, the output will:
25. The 555 timer can be used in which of the following configurations?