ece546fall11_02

ece546fall11_02 - ECE 546 ECE 546 - VLSI Systems Design...

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Unformatted text preview: ECE 546 ECE 546 - VLSI Systems Design VLSI Systems Design ecture 2: CMOS Inverter ecture 2: CMOS Inverter Lecture 2: CMOS Inverter Lecture 2: CMOS Inverter Static & Transient Behavior Static & Transient Behavior Fall Fall 2011 2011 W. Rhett Davis W. Rhett Davis NC State University NC State University ith significant material from ith significant material from abaey abaey handrakasan handrakasan and and ikoli ikoli 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 Announcements HW#1 Due in 1 Week HW#1 Includes a Digital Photo Use VCL for remote access (not grendel) Slide 2 W. Rhett Davis NC State University ECE 546 Fall 2011 Summary of Last Lecture Unified Transistor Model D I T GS V V for 2 in T GS V V DSAT DS T GS V V V V V , , min min for DS T GS D V V V V V L W k I 1 2 min min F SB F DS T T V BV V V 2 2 What do the different minimum values represent? How do you modify this equation to make it work for a PMOS transistor? Slide 3 W. Rhett Davis NC State University ECE 546 Fall 2011 What is DIBL and how does it affect transistor behavior? Todays Lecture MOS Inverter (Chapter 5) CMOS Inverter (Chapter 5) Static Behavior (5.2 5.3) Transient Behavior (5.4) Slide 4 W. Rhett Davis NC State University ECE 546 Fall 2011 Why Digital is Good Why do we generally prefer digital information to analog information? Slide 5 W. Rhett Davis NC State University ECE 546 Fall 2011 CMOS Inverter Voltage Transfer chematic Slide 6 W. Rhett Davis NC State University ECE 546 Fall 2011 Characteristic (VTC) Schematic Output Voltages Represents what utput of a chain of output of a chain of inverters would be V OL = V OH = Find these values by xamining the graph. examining the graph....
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ece546fall11_02 - ECE 546 ECE 546 - VLSI Systems Design...

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