ISLPED '95 Proceedings of the 1995 international symposium on Low power design
Low-swing interconnect interface circuits
ISLPED '98 Proceedings of the 1998 international symposium on Low power electronics and design
Databus charge recovery: practical considerations
ISLPED '99 Proceedings of the 1999 international symposium on Low power electronics and design
Analysis and implementation of charge recycling for deep sub-micron buses
ISLPED '01 Proceedings of the 2001 international symposium on Low power electronics and design
Low Power Digital CMOS Design
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Charge recovery uses charge from falling datalines to charge the rising datalines. Previous works addresses to this phenomena using statistical switching models where the amount of energy savings depends on the number of lines shorted, the control circuitry, data length & pattern [1]. We are extending the concept to creation of an intermediate level virtual source/sink, which acts as a charge reservoir & facilitates for charge recovery. Implementation of the concept provides feasibility for chip level charge recovery, even suitable for a single switching line. We could observe up to 35% reduction in switching power.