Digital Electronics - Combinational Logic Circuits - Discussion
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Read more:"Everything you can imagine is real."
- Pablo Picasso
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For the device shown here, let all D inputs be LOW, both S inputs be HIGH, and the input be LOW. What is the status of the Y output?

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LOW | | [B]. |
HIGH | | [C]. |
Don't Care | | [D]. |
Cannot be determined |
Answer: Option C
Explanation:
No answer description available for this question.
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Shardul Kandari said:
(Fri, Dec 3, 2010 12:48:53 AM)
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| here EN denotes that it is enable & if we keep the enable low then how high the other outputs are the circuit remains low |
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Sneha Jose said:
(Fri, Feb 4, 2011 04:32:47 AM)
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| EN is low means ic is enabled. When s0, s1 are high, it selects d3 to output. Since d3 is low, output is low. |
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Maulik said:
(Tue, Mar 8, 2011 09:46:16 AM)
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s1=1&s2=1
&d3 is selected
EN=0
d3=0
So, y=0 |
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Ravi Kumar Sinha said:
(Tue, Sep 27, 2011 10:41:38 AM)
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| Since s1 and s2 are 1 so 11 is the state which means d3 will be selected and since d3 is low so output will be low. |
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Kokila said:
(Sun, May 13, 2012 10:57:13 AM)
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| S1 and S2 are high. Then input of D3 will be the output. Hence answer is low since D3 is low. |
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Akhilesh Maurya said:
(Sat, May 26, 2012 03:21:43 PM)
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| Here, S1 and S2 are enabled i.e. both are at HIGH(1 1) state then D3 must be enable & D3 will be as output but all D are LOW so output is LOW(D3) |
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