MEMORY DEVICE FOR EFFICIENTLY DETERMINING WHETHER TO PERFORM RE-TRAINING OPERATION AND MEMORY SYSTEM INCLUDING THE SAME

    公开(公告)号:US20190050159A1

    公开(公告)日:2019-02-14

    申请号:US15906266

    申请日:2018-02-27

    Abstract: A memory device includes a path state check circuit configured to check states of signal transmission paths, each signal transmission path including a data transmission path and a clock transmission path of the memory device. The path state check circuit includes a sampling circuit configured to perform a sampling operation by using pattern data that has passed through the data transmission path and a clock signal that has passed through the clock transmission path, and generate sample data, and a management circuit configured to generate a comparison of the sample data with the pattern data and manage check result information indicating whether a re-training operation for the memory device is to be performed, based on a result of the comparison.

    Non-volatile memory device
    6.
    发明授权

    公开(公告)号:US11114171B2

    公开(公告)日:2021-09-07

    申请号:US17010100

    申请日:2020-09-02

    Abstract: A non-volatile memory device includes a memory cell region including a first metal pad and a memory cell array including a plurality of memory cells, and a peripheral circuit region including a second metal pad and an output driver to output a data signal, and vertically connected to the memory cell region by the first metal pad and the second metal pad. The output driver includes a pull-up driver and a pull-down driver. The pull-up driver includes a first pull-up driver having a plurality of P-type transistors and a second pull-up driver having a plurality of N-type transistors. The pull-down driver includes a plurality of N-type transistors. One or more power supply voltages having different voltage levels are selectively applied to the pull-up driver. A first power supply voltage is applied to the first pull-up driver, and a second power supply voltage is applied to the second pull-up driver.

    Non-volatile memory device
    7.
    发明授权

    公开(公告)号:US10770149B2

    公开(公告)日:2020-09-08

    申请号:US16048786

    申请日:2018-07-30

    Abstract: A non-volatile memory device includes an output driver to output a data signal. The output driver includes a pull-up driver and a pull-down driver. The pull-up driver includes a first pull-up driver having a plurality of P-type transistors and a second pull-up driver having a plurality of N-type transistors. The pull-down driver includes a plurality of N-type transistors. One or more power supply voltages having different voltage levels are selectively applied to the pull-up driver. A first power supply voltage is applied to the first pull-up driver, and a second power supply voltage is applied to the second pull-up driver.

    Reference voltage generator and semiconductor device including the same

    公开(公告)号:US10439632B2

    公开(公告)日:2019-10-08

    申请号:US16191367

    申请日:2018-11-14

    Abstract: A semiconductor device includes a reference voltage generator configured to output a reference voltage. The reference voltage generator includes a boosting code circuit and a first digital-analog converter (DAC). The boosting code circuit includes a first boosting pulse generator configured to generate a first boosting pulse and a first boosting code controller configured to output a first boosting code based on a reference code and the first boosting pulse. The first DAC is configured to output the reference voltage by converting the first boosting code. The first boosting code has a first code value different from the reference code when the first boosting pulse has a first logic level, and the first boosting code has the same value as the reference code when the first boosting pulse has a second logic level opposite to the first logic level.

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