co ng .c om Design and Implementation of VLSI Systems Lecture06 cu u du on g th an PERFORMANCE ESTIMATION cu u du on g th an co ng .c om Power in circuit element cu u du on g th an co ng .c om Power in circuit element Source of power dissipation cu u du on g th an co ng .c om Power dissipation in CMOS circuits comes from two components: Dynamic dissipation due to charging and discharging load capacitances as gates switch “short-circuit” current while both pMOS and nMOS stacks are partially ON Static dissipation due to subthreshold leakage through OFF transistors gate leakage through gate dielectric junction leakage from source/drain diffusions contention current in ratioed circuits cu u du on g th an co ng .c om Source of power dissipation cu u du on g th an co ng .c om Charging a capacitor cu u du on g th an co ng .c om Switching waveforms cu u du on g th an co ng .c om Switching power cu u du on g th an co ng .c om Activity factor cu u du on g th an co ng .c om Short circuit currents fb.c

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