Could some please show me how to do this from the below link. Thanks

http://www.d-project.com/simcir/simcir.html

 

What is it that you do not understand?? It seems very straight forward...

B. Morse

 

I dont know anything about these and wanted to know if someone could do a 4-1 of this and send me the end results

 

anyone......

 

What do you mean, a 4-1 circuit?

 

design a 4 to 1 multiplexer

 

This sounds more like a home work problem than anything.... here read up on this info and figure it out from there if you need further help let us know where you get stuck...

http://web.cs.mun.ca/~paul/cs3724/material/web/notes/node7.html

B. Morse

 

Im lost......

 

read the article from above, however, I dont understand the connections in Semicir

 

Ok, Im confused.. Are you trying to figure out how to use Simcir, or a specific circuit?

 

how to use semicir to create a 4-1 mulitplexer

 

how to use semicir to create a 4-1 mulitplexer...anyone

 

Hello,

Take a look at the datasheet of an DM74153.

Bertus

 

^^^ Bertus Could you show me how do do this from my my post in this thread in semicir?

 

Hello,

You will have a problem building it in this program.
The space is to limited and there are no multiple input gates.

Copied from the datasheet.

Bertus

 

Thanks bertus....i Have two more questions if you could help.

1) given hexadecimal
0001 A2
0002 11
0003 FE

What does the contents of A register after the execution of the following instructions.
00001000 00000000 00000001
00011000 00000000 00010001

 

2)what is the diagram of the following?

A B A* AB A* (+) (AB)
0 0 1 0 1
0 1 1 0 1
1 0 0 0 0
1 1 0 1 1

 

Hello,

The answer can only be given when you know what the instructions should do and whre register A is.
The representation you now give does not say enough.

Bertus

 

Hello,

I moved it to the homework help section as the question look like homework.

I think you need to dive into some digital electronics pages.

Here are some pages of the EDUCYPEDIA on digital electronics with lots of links:
http://www.educypedia.be/electronics/digitaltechnology.htm

Digital electronics:
Arithmetic circuits D/A-A/D converters Number systems Codes and decoders Flip flops Technology Counters and registers General overview Technology-CMOS Digital logic Memories Technology-TTL Timers and oscillators

Bertus