IoT May Need Sub-50-Cent SoCs

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SANTA CLARA, Calif., Oct. 27, 2017 – The future of the Internet of Things could depend on a chip that sells for less than 50 cents, according to a panel of technologists at ARM TechCon here. SoCs will need new kinds of memories, connectivity and sensors to scale to dimensions the IoT will demand, but the path to get there is still unclear, they said.

Today's SRAM and flash memories, Bluetooth interfaces and sensors consume too much power to serve volume IoT nodes in 2027, panelists said. They sketched out a few possibilities for what may replace them.

Ideally, a 2027 end node SoC will consume just 10 microwatts/MHz and send and transmit data on a radio drawing only 1 or 2 milliwatts, said Jason Hillyard, a director of software in ARM's wireless group. His "slideware SoC" used a new architecture built of subthreshold circuits suited for its energy harvesting power source.

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