Lecture16-Power_Revisited-6up

Lecture16-Power_Revisited-6up - EE141-Fall 2010 Digital...

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EE141 1 EECS141 1 Lecture #16 EE141 EE141 -Fall 2010 Fall 2010 Digital Integrated Digital Integrated Circuits Circuits Lecture 16 Lecture 16 Power Revisited Power Revisited EE141 2 EECS141 2 Lecture #16 Announcements Announcements ± Homework #7 due Thursday ² Project #1 due next Thurs. ± Midterm 2: Thurs. Nov. 4 th , 6:30- 8:00pm, room TBA ± Find a project partner EE141 3 EECS141 3 Lecture #16 Power Power Revisited Revisited EE141 4 EECS141 4 Lecture #16 Transition Activity and Power Transition Activity and Power ± Energy consumed in N cycles, E N : E N = C L V DD 2 n 0 1 n 0 1 – number of 0 1 transitions in N cycles f V C N n f N E P DD L N N N avg = = 2 1 0 lim lim f N n N = 1 0 1 0 lim α f V C P DD L avg = 2 1 0 EE141 5 EECS141 5 Lecture #16 “Dynamic” or timing dependent component Å Type of Logic Function (NOR vs. XOR) “Static” component (does not account for timing) Å Circuit Topology Å Type of Logic Style (Static vs. Dynamic) Å Signal Statistics Å Inter-signal Correlations Å Signal Statistics and Correlations Factors Affecting Transition Activity EE141 6 EECS141 6 Lecture #16 Type of Logic Function: NOR
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This note was uploaded on 02/06/2011 for the course EE 141 taught by Professor Staff during the Spring '08 term at University of California, Berkeley.

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Lecture16-Power_Revisited-6up - EE141-Fall 2010 Digital...

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