METHODS AND APPARATUSES FOR TEMPERATURE INDEPENDENT DELAY CIRCUITRY

    公开(公告)号:US20220352882A1

    公开(公告)日:2022-11-03

    申请号:US17813291

    申请日:2022-07-18

    Abstract: Methods and apparatuses are provided for temperature independent resistive-capacitive delay circuits of a semiconductor device. For example, delays associated with ZQ calibration or timing of the RAS chain may be implemented that to include circuitry that exhibits both proportional to absolute temperature (PTAT) characteristics and complementary to absolute temperature (CTAT) characteristics in order to control delay times across a range of operating temperatures. The RC delay circuits may include a first type of circuitry having impedance with PTAT characteristics that is coupled to an output node in parallel with a second type of circuitry having impedance with CTAT characteristics. The first type of circuitry may include a resistor and the second type of circuitry may include a transistor, in some embodiments.

    Methods and apparatuses for temperature independent delay circuitry

    公开(公告)号:US11929749B2

    公开(公告)日:2024-03-12

    申请号:US17813291

    申请日:2022-07-18

    CPC classification number: H03K5/134 G11C11/4076 G11C11/4093

    Abstract: Methods and apparatuses are provided for temperature independent resistive-capacitive delay circuits of a semiconductor device. For example, delays associated with ZQ calibration or timing of the RAS chain may be implemented that to include circuitry that exhibits both proportional to absolute temperature (PTAT) characteristics and complementary to absolute temperature (CTAT) characteristics in order to control delay times across a range of operating temperatures. The RC delay circuits may include a first type of circuitry having impedance with PTAT characteristics that is coupled to an output node in parallel with a second type of circuitry having impedance with CTAT characteristics. The first type of circuitry may include a resistor and the second type of circuitry may include a transistor, in some embodiments.

    METHODS AND APPARATUSES FOR TEMPERATURE INDEPENDENT DELAY CIRCUITRY

    公开(公告)号:US20210336612A1

    公开(公告)日:2021-10-28

    申请号:US16472773

    申请日:2018-10-17

    Abstract: Methods and apparatuses are provided for temperature independent resistive-capacitive delay circuits of a semiconductor device. For example, delays associated with ZQ calibration or timing of the RAS chain may be implemented that to include circuitry that exhibits both proportional to absolute temperature (PTAT) characteristics and complementary to absolute temperature (CTAT) characteristics in order to control delay times across a range of operating temperatures. The RC delay circuits may include a first type of circuitry having impedance with PTAT characteristics that is coupled to an output node in parallel with a second type of circuitry having impedance with CTAT characteristics. The first type of circuitry may include a resistor and the second type of circuitry may include a transistor, in some embodiments.

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