151. The duty cycle of a 555 timer configured as a basic astable multivibrator is controlled by ________.
(a) one resistor
(b) two resistors
(c) one capacitor
(d) a resistor and a capacitor
152. What type of multivibrator is a latch?
(a) Astable
(b) Monostable
(c) Bistable
(d) It depends on the type of latch.
153. A major drawback to an latch is its ________.
(a) complexity
(b) slow speed
(c) invalid condition
(d) latch mode
154. A gated D latch does not have ________.
(a) a clock input
(b) an enable input
(c) a output
(d) steering gates
155. The asynchronous inputs on a J-K flip-flop ________.
(a) are normally not at the active level at the same time
(b) take precedence over the J and K inputs
(c) do not require a clock pulse to affect the output
(d) all of the above
Related Posts
5555555555155. The asynchronous inputs on a J-K flip-flop ________. (a) are normally not at the active level at the same time (b) take precedence over the J and K inputs (c) do not require a clock pulse to affect the output (d) all of the above- 5555555555161. The toggle mode is the mode in which a(n) ________ changes states for each clock pulse. (a) logic level (b) flip-flop (c) edge-detector circuit (d) toggle detector
- 5555555555157. The 74121 nonretriggerable multivibrator can have the output pulse set by a single external component. This component is a(n) ________. (a) capacitor (b) inductor (c) resistor (d) LED
- 5555555555154. A gated D latch does not have ________. (a) a clock input (b) an enable input (c) a output (d) steering gates
- 5555555555153. A major drawback to an latch is its ________. (a) complexity (b) slow speed (c) invalid condition (d) latch mode