nanowatch:一种自供电的3-nW RISC-V SoC，可从160mV光伏输入集成温度传感和自适应性能缩放

2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits) Pub Date : 2022-06-12 DOI:10.1109/vlsitechnologyandcir46769.2022.9830206

D. Truesdell, Xinjian Liu, J. Breiholz, Shourya Gupta, Shuo Li, B. Calhoun

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引用次数: 2

摘要

这项工作提出了nanowatch，一种65纳米CMOS的自供电SoC，具有集成的温度传感，适用于小型化物联网应用。nanowatch可以在低至160mV的光伏输入环境光下冷启动和维持运行。具有6kB SRAM和DVFS子系统的性能可扩展的RISC-V处理器使系统功耗能够持续适应环境能量条件，最低总系统功耗为3nW，以毫米级尺寸提供始终在线的操作。

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NanoWattch: A Self-Powered 3-nW RISC-V SoC Operable from 160mV Photovoltaic Input with Integrated Temperature Sensing and Adaptive Performance Scaling

This work presents NanoWattch, a self-powered SoC in 65-nm CMOS with integrated temperature sensing for miniaturized IoT applications. NanoWattch can cold-start and sustain operation directly from ambient light with a photovoltaic input as low as 160mV. A performance-scalable RISC-V processor with 6kB SRAM and DVFS subsystem enable system power consumption to continuously adapt to ambient energy conditions down to a minimum total system power of 3nW to provide always-on operation in a mm-scale form factor.

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2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits)

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