Q2. Choose the correct answer. Answer all the questions: (4 x 3- 12 points) 1. A

Question

Q2. Choose the correct answer. Answer all the questions: (4 x 3- 12 points) 1. A gated D latch does not have a. clock input b. an enable input c. output d. steering gates 2. On a master-slave flip-flop, when is the master enabled? a. When gate is LOW b. When gate is HIGH c. Both of the above d. Neither of the above. 3. Synchronous construction reduces the delay time of a counter to the delay of a. all flip-flops and gates b. all flip-flops and gates after a 3 count c. a single gate d. a single flip-flop and a gate 4. BCD counter is a a. binary counter b. full-modulus counter c. decade counter d. divide-by-10 counter

Explanation / Answer

1)A gated D latch does not have
a)clock input
a latch is asynchronus, meaning it doesnt have a clock
2)b)When gate is HIGH
Master is connected directly to the clock, so when clock is high, Master gets enabled
3)d)a single flip flop and a gate
since all the flip flops are provided clcok simultaneously, they will all use the same delay time simultaneously
4)BCD counter is c)decade counter, since it has 10 states

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