The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2020
Filed:
Dec. 27, 2019
Nuvoton Technology Corporation, Hsinchu Science Park, TW;
Chi-Ray Huang, Kaohsiung, TW;
NUVOTON TECHNOLOGY CORPORATION, Hsinchu Science Park, TW;
Abstract
A data retention circuit includes a power switch, a first inverter and a second inverter. The power switch has a first connection terminal coupled to a power voltage, and a second connection terminal coupled to the first power terminal and a second power terminal of a second inverter. The second input terminal and the second output terminal of the second inverter are coupled to the first output terminal and the first input terminal of the first inverter, respectively. In a sleep mode, the power switch and the transistor are turned off, a first leakage current flows between the first connection terminal and the second connection terminal, a second leakage current flows between the first power terminal and the first output terminal, and the first and the second leakage currents form a steady-state voltage, higher than or equal to a data retention voltage, on a second connection terminal.
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