By Rajesh Garg, Nikhil Jayakumar, Suganth Paul

Power intake of VLSI (Very huge Scale built-in) circuits has been transforming into at an alarmingly speedy fee. This bring up in energy intake, coupled with the expanding call for for portable/hand-held electronics, has made energy intake a dominant situation within the layout of VLSI circuits this present day. normally, dynamic (switching) strength has ruled the complete strength intake of an IC. although, because of present scaling traits, leakage energy has now turn into a massive element of the full energy intake in VLSI circuits. Leakage energy relief is principally vital in portable/hand-held electronics reminiscent of cell-phones and PDAs. This publication provides recommendations aimed toward decreasing leakage energy in electronic VLSI ICs. the 1st approach reduces leakage throughout the selective use of excessive threshold voltage sleep transistors. the second one approach reduces leakage by means of using the optimum opposite physique Bias (RBB) voltage. This e-book additionally indicates readers tips on how to flip the leakage challenge into a chance, by utilizing sub-threshold logic.

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Dynamic ThresholdVoltage MOSFET (DTMOS) for Ultra-low Voltage VLSI. IEEE Transactions on Electron Devices 44(3), 414–422 (1997) 5. : Algebraic Decision Diagrams and Their Applications. Formal Methods in Systems Design 10(2/3), 171–206 (1997) 6. : Implicit Pseudo Boolean Enumeration Algorithms for Input Vector Control. In: Proc. Design Automation Conference, pp. 767–772. San Diego, CA (2004) 7. : Evaluating Run-Time Techniques for Leakage Power Reduction. In: 7th ASPDAC/15th International Conference on VLSI Design (2002) 8.

The approximate experiments for this figure were performed with m D 20. 4 reports the maximum and minimum leakage (represented in 10’s of pA) for several designs, mapped both for minimum area as well as delay. It was observed that mapping for minimum area results on average in a 20% reduction in both the maximum and minimum leakage value, compared to delay mapping. The experiments in these tables were performed with m D 12. The leakage histograms associated with the leakage ADDs were computed for some designs.

This path is basically a cube in the onset of the Boolean function represented by f . 3 Background 19 Fig. x1 C x2 / x3 x1 x2 x3 1 0 formulas). var array must contain the variables in the support of f . For example, if f D b d , and var array D Œa; b; c; d , then this function returns 4. ” old array and new array are arrays of BDDs with equal cardinality. Given two arrays of variable BDDs a and b consisting of member values (a1 .. an ) and (b1 .. bn ), this function replaces all occurrences of ai by bi in f .

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