ce12_w08_hw1_sol

# ce12_w08_hw1_sol - 1 0 0 1 1 0 1 0 1 0 1 1 0 1 0 0 1 1 0 1...

This preview shows pages 1–2. Sign up to view the full content.

CMPE 12 Winter 2008 Name: SOLUTIONS Homework 1: Due January 23 Email: 1) (10 pts) What is wrong with these transistor diagrams? i) CMOS design only allows for PMOS to be used in the Pull up (top of the diagram) and for NMOS to be in the Pull down (bottom). ii) This design shorts when A, C, and D are on and B is turned off; the output is undefined when A, C, and D are turned off and B is turned on. 2) (15 pts) a) Create a truth table for this logical equation: A=(X'YZ)'(X'+Y+Z') X Y Z A 0 0 0

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 0 0 1 1 0 1 0 1 0 1 1 0 1 0 0 1 1 0 1 0 1 1 0 1 1 1 1 1 b) Draw a system of NAND gates that represents the truth table. c) Count the number of transistors in your NAND system. 2 * 3 input NAND = 2 * (6 transistors) = 12 4 * 2 input NAND = 4 * (4 transistors) = 16 16 + 12 = 28 transistors 3) (15 pts) Using a D Flip-Flop and any logic gates, implement a sequential logic structure for the equation D=XZ'+(YXZ)'+Y'X+Q where Q is the output of the Flip-Flop, and D is the input of the Flip-Flop....
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern