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Abstract — In the recent sub-9Onm VLSI generation, a fluctuation exists in a supply voltage due to IR-drop and inductance effects. A supply voltage fluctuation in VISI chips causes large variations in the logic delay time and power consumption. However, in conventional low-power VLSI architecture such as variable threshold voltage CMOS (VTCMOS), the threshed voltage of the transistor is fixed in advance at the system design level. As a result, VTCMOS can't compensate a supply voltage fluctuation. By employing an adaptive threshold voltage control (ATVC), minimization of power consumption under a time constraint is achieved even in the presence of n supply voltage fluctuation. Optimal granularity is discussed to minimize the total power consumption

Topics: Key Words- Low Power, VLSI, Threshold-Voltage Control
Year: 2014
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