12) How many flip-flops A) 8 are required to construct a decade counter? 12) B)
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12) How many flip-flops A) 8 are required to construct a decade counter? 12) B) 4 C) 5 D) 10 ta path needs a 2000 ns delay. Which output from the dircuit below will provide the correct delay? SRG 8 CLRd CLK 2 MHz (Data shifts from Q0 toward Q7) D) Q3 A) Q1 14) 14) A decade counter will ount through decimal D) 15 A) 0 B) 10 15) 15) Which of the illustrations below represents the serial-in parallel-out register function? . IV. C) Figure III D) Figure IV. B) Figure II. A) Figure I. 16) 16) Which of the following is one of the primary functions performed by registers? D) NOR C) XOR A) AND B) memoryExplanation / Answer
12) 4 Flip flops are required to count upto 9.
13) Q3 will provide correct delay. 2MHz frequency is equal to 500ns. Therefore 2000ns/500ns=4 which is nothing but Q3 state.
14)decade counter counts from 0 to 9 decimal, total 10digit.
15) Figure 4, represent serial in parallel out, data taken at first flip flop and govigi out at every flip flop.
16) Register is made from flip flop, which store one bit memory, therefore register primarily used for memory.
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