Lab 7 - EE 421L 

Authored by Brian Smith (smith945@unlv.nevada.edu),

October 27th, 2014

  

In this lab, we made the 8-bit gate schematics for the ALU project as well as simulations for them, and an 8-bit adder schematic and layout.

 

First, here is the and gate schematic.

 

Then the symbol for that.

 

Then a schematic for the 8-bit combination.

 

 

The the symbol for that.

 

 

Now for the inverter. Here is the schematic.

 

 

And the symbol.

 

 

Then the schematic for a 4-bit inverter to test.

 

 

Then a symbol for that.

 

Then a simulation for it.

 

 

Here are the simulation settings for that.

 

 

And here is the output.

 

 

Then I made a schematic for an 8-bit group of inverters.

 

 

Then the symbol for it.

 

 

Then a multiplexer is made. Here is the schematic for it.

 

 

Then I made a symbol for it.

 

 

Then I made a NAND gate schematic.

 

 

And a symbol for it.

 

 

And a schematic for an 8-bit group of them.

 

 

Then a symbol for it.

 

 

Now for a NOR gate schematic.

 

 

I made a symbol for that as well.

 

 

Now for an 8-bit group of them.

 

 

Then I made a symbol for that.

 

 

Then I simulated them using the following schematic.

 

  

Here are the simulation settings for doing that.

 

 

The output of this is shown below.

 

 

Then I made a schematic for a full adder shown in figure 12.20.

 

 

Here is a symbol for that.

 

 

Here is a symbol for an 8-bit group of them.

 

 

Here is an symbol for that.

 

 

And that concludes this laboratory assignment. My lab7 directory is backed up here.

 

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