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A light-powered sub-threshold microprocessor

Liu Ming, Chen Hong, Zhang Chun, Li Changmeng and Wang Zhihua

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Abstract: This paper presents an 8-bit sub-threshold microprocessor which can be powered by an integrated photosensitive diode. With a custom designed sub-threshold standard cell library and 1 kbit sub-threshold SRAM design, the leakage power of 58 nW, dynamic power of 385 nW @ 165 kHz, EDP 13 pJ/inst and the operating voltage of 350 mV are achieved. Under a light of about 150 kLux, the microprocessor can run at a rate of up to 500 kHz. The microprocessor can be used for wireless-sensor-network nodes.

Key words: Power harvesting, wireless-sensor-network, sub-threshold microprocessor, photosensitive diode

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    Received: 18 August 2015 Revised: 22 June 2010 Online: Published: 01 November 2010

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      Liu Ming, Chen Hong, Zhang Chun, Li Changmeng, Wang Zhihua. A light-powered sub-threshold microprocessor[J]. Journal of Semiconductors, 2010, 31(11): 115002. doi: 10.1088/1674-4926/31/11/115002 Liu M, Chen H, Zhang C, Li C M, Wang Z H. A light-powered sub-threshold microprocessor[J]. J. Semicond., 2010, 31(11): 115002. doi: 10.1088/1674-4926/31/11/115002.Export: BibTex EndNote
      Citation:
      Liu Ming, Chen Hong, Zhang Chun, Li Changmeng, Wang Zhihua. A light-powered sub-threshold microprocessor[J]. Journal of Semiconductors, 2010, 31(11): 115002. doi: 10.1088/1674-4926/31/11/115002

      Liu M, Chen H, Zhang C, Li C M, Wang Z H. A light-powered sub-threshold microprocessor[J]. J. Semicond., 2010, 31(11): 115002. doi: 10.1088/1674-4926/31/11/115002.
      Export: BibTex EndNote

      A light-powered sub-threshold microprocessor

      doi: 10.1088/1674-4926/31/11/115002
      • Received Date: 2015-08-18
      • Accepted Date: 2010-04-26
      • Revised Date: 2010-06-22
      • Published Date: 2010-10-31

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