ece546fall11_13

ece546fall11_13 - ECE ECE 546 - VLSI Systems Design Lecture...

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ECE 546 ECE 546 - VLSI Systems Design VLSI Systems Design ecture 13: ecture 13: atches & Flip atches & Flip- lops lops Lecture 13: Lecture 13: Latches & Flip Latches & Flip Flops, Flops, Synchronous Design Fall Fall 2011 2011 W. Rhett Davis NC State University ith significant material from ith significant material from abaey abaey handrakasan handrakasan and and ikoli ć Slide 1 © W. Rhett Davis NC State University ECE 546 Fall 2011 with significant material from with significant material from Rabaey Rabaey, , Chandrakasan Chandrakasan, and , and Nikoli Nikoli
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Announcements HW#6 Due in 1 week Start forming project groups » Post to Project Groups Message Board » Use subject lines: – LFG (1 person looking for group) FM (2 people looking for member) LFM (2 people looking for member) » Post times that you are available to meet Slide 2 © W. Rhett Davis NC State University ECE 546 Fall 2011
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Summary of Last Lecture What problems are likely to occur when you cascade dynamic gates? What rules can you follow to cascade dynamic gates safely? hy do dynamic gates tend to consume Why do dynamic gates tend to consume more power than static gates? Slide 3 © W. Rhett Davis NC State University ECE 546 Fall 2011
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Today’s Lecture tatic Latches & Registers (7 2) Static Latches & Registers (7.2) Synchronous Design (10.3 – 10.3.1) Slide 4 © W. Rhett Davis NC State University ECE 546 Fall 2011
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Positive Feedback: Bi-Stability V i1 V o2 V o1 =V i2 V V o1 V i2 V V A o2 V o1 C B Slide 5 © W. Rhett Davis NC State University ECE 546 Fall 2011 V o2
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Meta-Stability A o1 A V i2 5V C C B B Gain should be larger than 1 in the transition region d V i1 5 V o2 V 5 V o2 Slide 6 © W. Rhett Davis NC State University ECE 546 Fall 2011
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Classic S-R Latch RSQ Q 00 Q Q 0 1 1 0 1001 ow many transistors?
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This note was uploaded on 01/26/2012 for the course EE 546 taught by Professor Whett during the Spring '11 term at N.C. State.

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ece546fall11_13 - ECE ECE 546 - VLSI Systems Design Lecture...

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