List the state of each output pin of a 7447 if RBI = 0, LT = 1, A0 = 1, A1 = 0,

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Question
List the state of each output pin of a 7447 if RBI = 0, LT = 1, A₀ = 1, A₁ = 0, A₂ = 0, and A₃ = 1.
Options
A. RBO = 0, a = 0, b = 0, c = 0, d = 1, e = 1, f = 0, g = 0
B. RBO = 1, a = 0, b = 0, c = 0, d = 1, e = 1, f = 0, g = 0
C. RBO = 0, a = 0, b = 0, c = 0, d = 0, e = 1, f = 0, g = 0
D. RBO = 1, a = 0, b = 0, c = 0, d = 0, e = 1, f = 0, g = 0

Correct Answer

RBO = 0, a = 0, b = 0, c = 0, d = 1, e = 1, f = 0, g = 0

Counters problems

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1. What is the difference between a 7490 and a 7492?
Options
A. 7490 is a MOD-12, 7492 is a MOD-10
B. 7490 is a MOD-12, 7492 is a MOD-16
C. 7490 is a MOD-16, 7492 is a MOD-10
D. 7490 is a MOD-10, 7492 is a MOD-12

3. The toggle condition in a master-slave J-K flip-flop means that Q and will switch to their ________ state(s) at the ________.
Options
A. opposite, active clock edge
B. inverted, positive clock edge
C. quiescent, negative clock edge
D. reset, synchronous clock edge

10. For a one-shot application, how can HDL code be used to make a circuit respond once to each positive transition on its trigger input?
Options
A. By using a counter
B. By using an active clock
C. By using an immediate reload
D. By using edge trapping

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