Patents Represented by Attorney Stout, Uxa, Byan & Mullins, LLP

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  • Power-on reset circuit with supply voltage and temperature immunity, ultra-low DC leakage current, and fast power crash reaction
    Patent number: 7135898
    Abstract: A power-on reset circuit includes a Schmitt trigger circuit, a voltage divider, and a compensate circuit. The Schmitt trigger circuit includes a plurality of MOS devices of a uniform threshold voltage (Vt) for determining a power reset trigger level. The voltage divider is coupled to an input of the Schmitt trigger circuit for tracking the supply signal. The compensate circuit is operative to generate a small reset pulse to compensate for temperature and the supply signal variation effect.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: November 14, 2006
    Assignee: Macronix International Co., Ltd.
    Inventors: Chien-Chung Tseng, Chih-Neng Hsu