Recent questions in Digital Circuits

2 votes
1 answer
1
Match the logic gates in Column A with their equivalents in Column B.$\text{P-2, Q-4, R-1, S-3}$$\text{P-4, Q-2, R-1, S-3}$$\text{P-2, Q-4, R-3, S-1}$$\text{P-4, Q-2, R-3...
2 votes
1 answer
2
2 votes
1 answer
3
Assuming that all flip-flops are in reset condition initially, the count sequence observed at $\text{Q}_\text{A}$ in the circuit shown is$0010111 \ldots$$0001011 \ldots$$...
2 votes
1 answer
4
2 votes
1 answer
5
The logic function implemented by the circuit below is (ground implies a logic $\text{“0”})$$\text{F=AND(P,Q})$$\text{F=OR(P,Q})$$\text{F=XNOR(P,Q})$$\text{F=XOR(P,Q}...
3 votes
1 answer
8
​​​​​​​If $(1235)_{x}\:=\:(3033)_{y}$, where $x$ and $y$ indicate the bases of the corresponding numbers, then$x\:=\:7$ and $y\:=\:5$$x\:=\:8$ and $y\:=\:6$...
0 votes
0 answers
9
​​​​​​Addressing of a $32K\:\times\:16$ memory is realized using a single decoder. The minimum number of $\text{AND}$ gates required for the decoder is$2^{8}$...
0 votes
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14
In an $8085$ microprocessor, the number of address lines required to access a $16$ K byte memory bank is ____________ .
0 votes
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15
A $10$-bit D/A converter is calibrated over the full range from $0$ to $10$ V. If the input to the D/A converter is $13 \:A$ (in hex), the output ( rounded off to three d...
0 votes
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18
In the circuit shown, what are the values of $F$ for $EN=0$ and $EN=1,$ respectively?$\text{0 and D}$$\text{Hi-Z and D}$$\text{0 and 1}$$\text{Hi-Z and}$ $ \overline{D}$
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19
In the circuit shown, $A$ and $B$ are the inputs and $F$ is the output. What is the functionality of the circuit?LatchXNORSRAM CellXOR
0 votes
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22
0 votes
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23
2 votes
1 answer
24
Following is the K-map of a Boolean function of five variables $P,Q,R,S$ and $X$. The minimum sum-of-product (SOP) expression for the function is$\overline{P}\:\overline{...
0 votes
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34
The functionality implemented by the circuit below is$2$-to-$1$ multiplexer $4$-to-$1$ multiplexer$7$-to-$1$ multiplexer$6$-to-$1$ multiplexer
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37
Which one of the following $8085$ microprocessor programs correctly calculates the product of two $8$-bit numbers stored in registers $B$ and $C?$$\begin{array}{ll} {} & ...