Lab 6 - EE 421L 

Authored by Gerald Lee

leeg28@unlv.nevada.edu

October 19, 2014





Design, layout, and simulation of a CMOS NAND gate, XOR gate, and Full-Adder

 

The objective of this lab is create shematics, layouts and simulations of a NAND, XOR and Full-Adder.



Logic Gate
Schematic
Symbol
Layout
Inverter
http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip1.jpg
http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip2.jpg
http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip3.jpg
Nand
http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip4.jpg
http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip5.jpg
http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip6.jpg
Xor
http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip7.jpg
http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip8.jpg
http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip9.jpg
Full-Adder
http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip14.jpg
http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip15.jpg








 
Simulating the Gates


http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip10.jpg




http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip11.jpg





Simulating the Full-Adder




http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip12.jpg




http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip13.jpg

Here are the simulations for the full adder, notice the blips due to the timing delay of our signals this is due to the rise and fall time of the input signal.






 


 

 

 

 

 

 

  

Back-Up shown below.

http://cmosedu.com/jbaker/courses/ee421L/f14/students/leeg28/lab6/snip16.jpg










Design Files can be found here.