hw7_digital_logic

hw7_digital_logic - MASSACHUSETTS INSTITUTE OF TECHNOLOGY...

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6.02 Spring 2008 1 of 2 Homework #7 M ASSACHUSETTS I NSTITUTE OF T ECHNOLOGY D EPARTMENT OF E LECTRICAL E NGINEERING AND C OMPUTER S CIENCE 6.02 Introduction to EECS II Spring 2008 Homework #7: Digital Logic Issued: March 31, 2008 Due: April 4, 2008 Problem 1 . In this problem we’re asking you to implement wide-fanin gates (i.e., gates with many inputs) using simpler gates with only 2 inputs. (A) Draw a schematic for a circuit XOR3 that computes the XOR of three inputs: Z = A B C using only 2-input XOR gates. What’s the propagation delay of circuit relative to t PD,XOR2 , the propagation delay of the 2-input XOR? (B) Draw a schematic for a circuit XOR5 that computes the XOR of five inputs: Z = A B C D E using only the XOR3 circuit you designed above. What’s the best propagation delay for XOR5 one can achieve relative to t PD,XOR2 , the propagation delay of the 2-input XOR?
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This note was uploaded on 08/23/2009 for the course EECS 6.02 taught by Professor Terman during the Spring '08 term at MIT.

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hw7_digital_logic - MASSACHUSETTS INSTITUTE OF TECHNOLOGY...

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