Bootstrapped switch
    1.
    发明授权

    公开(公告)号:US12068740B2

    公开(公告)日:2024-08-20

    申请号:US18226278

    申请日:2023-07-26

    发明人: Yen-Ting Wu

    CPC分类号: H03K17/04 H03K19/01

    摘要: A bootstrapped switch includes a first transistor, a second transistor, a first capacitor, three switches, and a switch circuit. The switch circuit includes a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, and a second capacitor. The first transistor receives the input voltage and outputs the output voltage. The first terminal of the second transistor receives the input voltage, and the second terminal of the second transistor is coupled to the first capacitor. The control terminal of the first switch receives a clock. The second switch is coupled between the control terminal of the first transistor and the first switch. The second capacitor is coupled to a reference voltage through the third switch and the sixth switch, coupled to the input voltage through the fifth switch, and coupled to the control terminal of the first transistor through the fourth switch.

    Calibration methods and circuits to calibrate drive current and termination impedance

    公开(公告)号:US11522544B2

    公开(公告)日:2022-12-06

    申请号:US16878233

    申请日:2020-05-19

    申请人: Rambus Inc.

    摘要: Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

    Calibration methods and circuits to calibrate drive current and termination impedance

    公开(公告)号:US10270441B2

    公开(公告)日:2019-04-23

    申请号:US15685230

    申请日:2017-08-24

    申请人: Rambus Inc.

    摘要: Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

    Communication between voltage domains

    公开(公告)号:US09935634B2

    公开(公告)日:2018-04-03

    申请号:US14327004

    申请日:2014-07-09

    申请人: ARM Limited

    IPC分类号: H03K19/01 H03K19/0175

    CPC分类号: H03K19/017509

    摘要: An integrated circuit including a first voltage domain incorporates real time clock circuitry that communicates via communication circuitry with processing circuitry contained within a second voltage domain. The communication circuitry includes first parallel-to-serial conversion circuitry located within the first voltage domain, level shifting circuitry for passing serial signals between the voltage domains and second parallel-to-serial circuitry located in the second voltage domain.

    Band Segmented Bootstraps and Partitioned Frames

    公开(公告)号:US20180062820A1

    公开(公告)日:2018-03-01

    申请号:US15679739

    申请日:2017-08-17

    发明人: Michael J. SIMON

    摘要: Apparatuses and methods are provided for generating, transmitting, receiving, and decoding one or more band segmented bootstrap signals and one or more corresponding partitioned post bootstrap signals. For example, a transmitter is configured to generate a first set of symbols and a second set of symbols, where the first set of symbols includes information about the second set of symbols. The transmitter is further configured to generate a third set of symbols and a fourth set of symbols, where the third set of symbols includes information about the fourth set of symbols. The transmitter is also configured to generate a data frame including the first, second, third, and fourth set of symbols. A bandwidth of the data frame includes a first segment and a second segment.

    SEARCH DEVICE AND SEMICONDUCTOR DEVICE
    8.
    发明申请

    公开(公告)号:US20180018257A1

    公开(公告)日:2018-01-18

    申请号:US15590081

    申请日:2017-05-09

    发明人: Takeo MIKI

    摘要: To provide a search device with less memory consumption, the search device includes a first associative memory searched with a first search key, a second associative memory searched with a second search key, a concatenated search data generating unit that generates first search information based on hit information including multiple hits in the first associative memory, and a search key generating unit that includes a first key generating unit generating a portion of search data as the first search key and a second search key generating unit generating the first search information and another portion of the search data as the second search key.