4way Demux using Demux

[cygnus]

Hi,

Is there any other way(possibly using simple demux) to implement 4way demux other than this method?

[cadet1620]

The method you used to make your DMux4Way is going to be rather cumbersome to make a DMux8Way.

You're on the right track to think about using DMux to make DMux4Way, and a similar method to make DMux8Way.  Think about how a tree grows.

--Mark

[cygnus]

Hi Mark,

I'm afraid I couldn't catch the hint.  Would you mind elaborating more on the implementation part? The multiple output of demux makes it hard to me to visualize it unlike other gates seen until now.

[cadet1620]

Did you make your Mux4Way16 and Mux8Way16 out of Mux16 chips?  Mirror image those circuits, swapping inputs for outputs (and only 1 bit wide, of course).

--Mark

[linuxford]

Thanks for the tip on mirroring of the Muxes to get the DMuxes. And also thank you for all the tips in the various previous replies to other people's posts. I've been reading those and they've been very helpful.

[ysh443]

Hi Mark
i implemented my DMux4way using a Xor and 3 Dmuxes
how can i know if my implementation is ok

is that the best way?

regards

[cadet1620]

ysh443 wrote

i implemented my DMux4way using a Xor and 3 Dmuxes
how can i know if my implementation is ok

is that the best way?

In general, if your implementation passes the test script, you part is OK. Specifically, the solution talked about in this post is just 3 DMuxes. Don't spend too much time on it, though. Working on DMux8Way may give you insight that will let you go back and improve your 4Way.

--Mark

[ammarr]

thanks alot

as you said

its a Tree that splits 2 branches every time it grows, this example clicked with me

in the image below V is a Dmux

DMux4Way = 2 x 2 = 4

   || ||
    V V
    | |    
     V
     |

 you can get it with 3 Dmux Chips


DMux8Way = 2 x 2 x 2 = 8


  ||  ||  ||  ||
   V  V   V   V
   |__|   |__|
     V       V
     |__  __|    
          V
          |

 you can get it with 7 Dmux Chips

hope this helps explains

this completes my first chapter.

Thanks

[cadet1620]

Think about using the parts you just made. With DMux4Way and DMux you can make DMux8Way with 3 parts instead of 7.

--Mark

[ammarr]

thanks alot

i was having trouble sending the sel[2] to the DMux4way, but now i figured it out
and yeah now its 3 parts only 1 Dmux and 2 DMux4way

Regards

[Mikey2520]

Exact same method dude!

[canbax]

Thanks folks for clues.

I just wanted to say that tree grows from root to leaves Thinking in this way might be more intuitional