ENGR-434 Homework #5 - Due Wednesday 4/24/19



Do problems 4.11, 4.18, 4.21, 4.24

Also, recall that in lab last week we were going to create a NAND gate. So, if you have not already done so, create a new cell for the NAND gate (it is ok to be in the same project as used in lab) and create a schematic and symbol for it. Then create another cell called nand_test or similar and initiate a schematic for it. When creating this schematic you will not use transistors but place two of your inverters in series driving one input of your NAND gate (which at this point is just a schematic and symbol). Connect the second NAND gate input to a DC source when simulating. Simulate with no load to determine the parasitic time delay. Also determine the contamination delay. Note: Doing a NAND cell layout is not part of this assignment.

Larry Aamodt PhD, PE
Professor of Engineering and Computer Science
E.F. Cross School of Engineering Walla Walla University
Contact:
via email: AamoLa (at) wallawalla.edu
via phone: x2058