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  #1  
Old 07-24-2006, 05:33 AM
anaki73 anaki73 is offline
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Default How do I implement an 8-1 multiplexer in a full adder?

Help,

I am having trouble with the following question :

Implement a full adder using two 8-to-1 MUXes. Connect X,Y, and Cin to the control inputs of the MUXes and connect 1 or 0 to each data input.

Do I need to wire the two muxes to a full adder circuit or do I need to make a full adder out of two multiplexers?

Any help would be greatly appreciated

Anaki
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  #2  
Old 07-24-2006, 12:03 PM
n9352527 n9352527 is offline
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You need to implement the full adder by using the two muxes, not just wiring the muxes to a full adder. If you need a hint on how to achieve this, think of a full adder truth table, mapped to the muxes input and the correct output values are selected by three control lines, which are mapped full adder input.

Last edited by n9352527; 07-24-2006 at 12:10 PM.
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Old 07-26-2006, 08:37 AM
Dave Dave is offline
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As a reference you may wish to refer to the following information on Full Adders.

Dave
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Old 08-13-2007, 08:59 PM
baluraja baluraja is offline
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Default How do I implement an 8-1 multiplexer in a full adder?

Please show me the correct sketch!!!!
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Old 08-13-2007, 10:14 PM
Dave Dave is offline
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Quote:
Originally Posted by baluraja View Post
Please show me the correct sketch!!!!
I've got a better suggestion - you show us how you think the sketch will look and we'll give you some feedback on it.

Dave
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  #6  
Old 08-14-2007, 01:29 AM
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Papabravo Papabravo is online now
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Dave,

Was it exclamation point #2, #3, or #4 that pushed you over the edge?
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  #7  
Old 08-14-2007, 08:31 AM
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recca02 recca02 is offline
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Quote:
Originally Posted by baluraja View Post
Please show me the correct sketch!!!!
why is it that you do not wish to try or do no want to share your idea on the topic?
this forum is to help u learn.
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  #8  
Old 08-14-2007, 01:30 PM
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JoeJester JoeJester is offline
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recca,

Attached is the schematic some have when they post their inquiry especially in the homework area.

It's a shame.
Attached Images
File Type: jpg schematic.jpg (2.4 KB, 347 views)
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  #9  
Old 08-14-2007, 02:40 PM
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well, MR. Joe,
that speaks for itself.
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  #10  
Old 08-14-2007, 03:50 PM
n9352527 n9352527 is offline
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Quote:
Originally Posted by JoeJester View Post
recca,

Attached is the schematic some have when they post their inquiry especially in the homework area.

It's a shame.

Am I having a problem viewing the image or is the image supposed to be blank, which would make a perfect sense in this case as well?
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