Lecture3

Lecture3 - ECE ECE 124A VLSI Principles Lecture 3 Prof....

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ECE 124A LSI Principles VLSI Principles ecture 3 Lecture 3 Prof. Kaustav Banerjee Electrical and Computer Engineering E-mail: kaustav@ece.ucsb.edu @ Kaustav Banerjee Lecture 3, ECE 124A, VLSI Principles 1
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NOR Gate 2 PMOS must be in series…. . Kaustav Banerjee Lecture 3, ECE 124A, VLSI Principles 2 2 NMOS must be in parallel….
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CMOS NOR Implementation Kaustav Banerjee Lecture 3, ECE 124A, VLSI Principles 3
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CMOS 3 CMOS 3-input NOR Implementation input NOR Implementation Kaustav Banerjee Lecture 3, ECE 124A, VLSI Principles 4
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Combinational Logic Output state X should always be avoided: static power Output state Z is of relevance in certain gates such as multiplexers Kaustav Banerjee Lecture 3, ECE 124A, VLSI Principles 5
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Compound Gates Needs 20 transistors…. Y= A.B + C.D Kaustav Banerjee Lecture 3, ECE 124A, VLSI Principles 6
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Compound Gates Y= A.B + C.D Pull-down (when is Y =0?) Pull-up (when is Y=1?) eed 8 transistors Kaustav Banerjee Lecture 3, ECE 124A, VLSI Principles 7 Need 8 transistors
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Compound Gates Kaustav Banerjee Lecture 3, ECE 124A, VLSI Principles 8
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Pass Transistors Kaustav Banerjee Lecture 3, ECE 124A, VLSI Principles 9
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This note was uploaded on 12/04/2010 for the course ECE 134 taught by Professor York during the Fall '08 term at UCSB.

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Lecture3 - ECE ECE 124A VLSI Principles Lecture 3 Prof....

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