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Recent work in ultra-low-power sensor platforms has enabled a number of new applications in medical, infrastructure, and environmental monitoring. Due to their limited energy storage volume, these sensors operate with long idle times and ultra-low standby power ranging from 10s of nW down to 100s of pW. Since radio transmission is relatively expensive, even at the lowest reported power of 0.2mW, wireless...
In this paper, we present a circuit technique that supports a super-drowsy mode with a single-VDD. In addition, we perform a detailed working set analysis for various cache line update policies for placing lines in a drowsy state. The analysis presents a policy for an instruction cache and shows it is as good as or better than more complex schemes proposed in the past. Furthermore, as an alternative...
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