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Patent Searching and Data


Title:
SEMICONDUCTOR DEVICE AND CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/038393
Kind Code:
A1
Abstract:
The present invention reduces power consumption. This semiconductor device comprises a sensor circuit having a sensor element, a power supply management device, and an arithmetic processing circuit. The power supply management device functions to control supply of power to the arithmetic processing circuit. The arithmetic processing circuit includes a first circuit having a first memory circuit, and a second circuit having a second memory circuit. The first circuit functions to retain first data in the first memory circuit in a period in which power is being supplied to the arithmetic processing circuit. The second circuit functions to read the first data retained in the first memory circuit and to write the first data to the second memory circuit in the period in which power is being supplied to the arithmetic processing circuit, and functions to retain the first data in the second memory circuit in a period in which supply of power to the arithmetic processing circuit is stopped. The sensor circuit functions to determine a detection signal of the sensor element and to feed the second data to the power supply management device in accordance with a determination result. The power supply management device functions to resume or stop the supply of power to the arithmetic processing circuit in accordance with the second data.

Inventors:
KATAGIRI HARUKI (JP)
TSUKAMOTO YOSUKE (JP)
FURUMATSU DAISUKE (JP)
MUKAO KYOICHI (JP)
ENDO MOTOHIRO (JP)
Application Number:
PCT/IB2020/057819
Publication Date:
March 04, 2021
Filing Date:
August 20, 2020
Export Citation:
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Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
International Classes:
H01L21/28; G06F1/3215; G06F1/3287; H01L21/822; H01L21/8234; H01L21/8242; H01L21/8244; H01L27/04; H01L27/06; H01L27/088; H01L27/108; H01L27/11; H01L27/1156; H01L29/417; H01L29/423; H01L29/49; H03K19/00
Domestic Patent References:
WO2015083598A12015-06-11
Foreign References:
JP2016042352A2016-03-31
JP2006201948A2006-08-03
JP2014060784A2014-04-03
JP2010093347A2010-04-22
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