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- W4240810601 abstract "Dual V <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>t</inf> has been widely used to control leakage, while, at the same time, satisfying circuit performance. However, current approaches target the combinational circuits even though sequential elements, such as flip-flops and latches, contribute an appreciable proportion of the total leakage. The use of dual V <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>t</inf> flip-flops is limited to circuits of large timing slack, because introducing high V <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>t</inf> flip-flops in place of low V <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>t</inf> ones yields abrupt change in timing. We propose mixed V <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>t</inf> flip-flops, which are designed by using both low and high V <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>t</inf> , but in different transistors. Compared to low V <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>t</inf> flip-flop, the mixed V <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>t</inf> flip-flops exhibit increased delay, but either on setup time or on clock-to- Q delay but not on both, while their leakage is greatly reduced. We extend the conventional sensitivity-based dual Vt allocation algorithm to incorporate mixed V <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>t</inf> flip-flops together with dual V <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>t</inf> combinational gates. Experimental results show that an average leakage saving of 31% is achieved, compared to the use of dual V <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>t</inf> on combinational subcircuits alone. The leakage of the flip-flops themselves is cut by 57% on average." @default.
- W4240810601 created "2022-05-12" @default.
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- W4240810601 date "2007-11-01" @default.
- W4240810601 modified "2023-10-16" @default.
- W4240810601 title "Minimizing leakage power in sequential circuits by using mixed vt flip-flops" @default.
- W4240810601 doi "https://doi.org/10.1109/iccad.2007.4397363" @default.
- W4240810601 hasPublicationYear "2007" @default.
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