Variable speed path circuit and method
    1.
    发明授权
    Variable speed path circuit and method 失效
    变速路径电路及方法

    公开(公告)号:US6107854A

    公开(公告)日:2000-08-22

    申请号:US62379

    申请日:1998-04-17

    摘要: A speed path circuit includes a reference circuit and adjustable drive components that can be turned on or off to vary the speed path in order to meet minimum delay specification for the circuit. In an embodiment, one or more differential amplifiers are used to detect the strength of example circuit elements and generate a reference signal. An optional embodiment includes a mechanism for disconnecting the reference circuit to avoid any DC current drain. The invention may be used in a wide range of integrated circuits and may also be used in a programmable logic device (PLD). Reference circuits may be disconnected from a power source by using programmable logic elements.

    摘要翻译: 速度路径电路包括参考电路和可调节的驱动部件,其可以被接通或关断以改变速度路径,以便满足电路的最小延迟规范。 在一个实施例中,使用一个或多个差分放大器来检测示例电路元件的强度并产生参考信号。 可选实施例包括用于断开参考电路以避免任何直流电流消耗的机构。 本发明可以用于广泛的集成电路中,并且还可以用在可编程逻辑器件(PLD)中。 参考电路可以通过使用可编程逻辑元件与电源断开连接。

    Overvoltage-tolerant interface for intergrated circuits
    3.
    发明授权
    Overvoltage-tolerant interface for intergrated circuits 有权
    集成电路的过压容限接口

    公开(公告)号:US06252422B1

    公开(公告)日:2001-06-26

    申请号:US09400953

    申请日:1999-09-22

    IPC分类号: H03K190175

    摘要: An input/output driver for interfacing directly with a voltage at a pad (820) which is above a supply voltage (817) for the input/output driver. This may be referred to as an “overvoltage condition.” For example, if the supply voltage is 3.3 volts, a 5-volt signal may be provided at the pad of the input/output driver. The input/output driver will tolerate this voltage level and prevent leakage current paths. This will improve the performance, reliability, and longevity of the integrated circuit. The input/output driver includes a well-bias generator (1002) for preventing leakage current paths.

    摘要翻译: 一种用于直接与在输入/输出驱动器的电源电压(817)之上的焊盘(820)处的电压直接接口的输入/输出驱动器。 这可能被称为“过电压条件”。 例如,如果电源电压为3.3V,则可以在输入/输出驱动器的焊盘处提供5V电压信号。 输入/输出驱动器将容忍该电压电平并防止漏电流路径。 这将提高集成电路的性能,可靠性和使用寿命。 输入/输出驱动器包括用于防止泄漏电流路径的阱偏压发生器(1002)。

    Programmable logic with lower internal voltage circuitry
    4.
    发明授权
    Programmable logic with lower internal voltage circuitry 失效
    具有较低内部电压电路的可编程逻辑

    公开(公告)号:US06724222B2

    公开(公告)日:2004-04-20

    申请号:US10366814

    申请日:2003-02-13

    IPC分类号: H03K19175

    摘要: A technique and circuitry interfaces a programmable logic integrated circuit compatible with one voltage level to other integrated circuits compatible with a different voltage level. In particular, an on-chip voltage less than the external supply level of the programmable logic integrated circuit is provided to a core portion of a programmable logic integrated circuit by way of a conversion transistor. In an embodiment, the layout (or physical structure) of the conversion transistor is distributed surrounding the core portion. Externally, the programmable logic integrated circuit will interface with an external supply voltage level. The input and output signals to and from the programmable logic integrated circuit will be compatible with the external supply level.

    摘要翻译: 技术和电路将与一个电压电平兼容的可编程逻辑集成电路与不同电压电平兼容的其他集成电路接口。 特别地,通过转换晶体管将可编程逻辑集成电路的小于外部电源电平的片上电压提供给可编程逻辑集成电路的核心部分。 在一个实施例中,转换晶体管的布局(或物理结构)分布在芯部分周围。 在外部,可编程逻辑集成电路将与外部电源电压接口。 来自可编程逻辑集成电路的输入和输出信号将与外部电源电平兼容。

    Overvoltage-tolerant interface for integrated circuits
    5.
    发明授权
    Overvoltage-tolerant interface for integrated circuits 有权
    集成电路的过压容限接口

    公开(公告)号:US06583646B1

    公开(公告)日:2003-06-24

    申请号:US09860028

    申请日:2001-05-16

    IPC分类号: H03K190175

    摘要: An input/output driver for interfacing directly with a voltage at a pad which is above a supply voltage for the input/output driver. This may be referred to as an “overvoltage condition.” For example, if the supply voltage is 3.3 volts, a 5-volt signal may be provided at the pad of the input/output driver. The input/output driver will tolerate this voltage level and prevent leakage current paths. This will improve the performance, reliability, and longevity of the integrated circuit. The input/output driver includes a well-bias generator for preventing leakage current paths.

    摘要翻译: 一个输入/输出驱动器,用于直接与焊盘上的电压进行接口,该电压高于输入/输出驱动器的电源电压。 这可能被称为“过电压条件”。 例如,如果电源电压为3.3V,则可以在输入/输出驱动器的焊盘处提供5V电压信号。 输入/输出驱动器将容忍该电压电平并防止漏电流路径。 这将提高集成电路的性能,可靠性和使用寿命。 输入/输出驱动器包括用于防止漏电流路径的阱偏置发生器。

    Circuitry for a low internal voltage
    6.
    发明授权
    Circuitry for a low internal voltage 有权
    电路内部电压低

    公开(公告)号:US06563343B1

    公开(公告)日:2003-05-13

    申请号:US10136944

    申请日:2002-04-30

    IPC分类号: H03K190175

    摘要: A technique provides an on-chip voltage to a core portion of an integrated circuit by way of a conversion transistor. The on-chip voltage may be a reduced internal voltage, less than the VCC of the integrated circuit. In an embodiment, the layout (or physical structure) of the conversion transistor is distributed surrounding the core portion. By providing the core with a reduced voltage, the integrated circuit may interface with other integrated circuits compatible with different voltage levels.

    摘要翻译: 一种技术通过转换晶体管向集成电路的核心部分提供片上电压。 片上电压可能是内部电压降低,小于集成电路的VCC。 在一个实施例中,转换晶体管的布局(或物理结构)分布在芯部分周围。 通过为内核提供降低的电压,集成电路可以与与不同电压电平兼容的其他集成电路接口。

    Circuitry for a low internal voltage integrated circuit
    7.
    发明授权
    Circuitry for a low internal voltage integrated circuit 有权
    用于集成电路的结构,以提供片上电压

    公开(公告)号:US06414518B1

    公开(公告)日:2002-07-02

    申请号:US09449166

    申请日:1999-11-24

    IPC分类号: H03K1900

    摘要: A technique provides an on-chip voltage to a core portion of an integrated circuit by way of a conversion transistor. The on-chip voltage may be a reduced internal voltage, less than the VCC of the integrated circuit. In an embodiment, the layout (or physical structure) of the conversion transistor is distributed surrounding the core portion. By providing the core with a reduced voltage, the integrated circuit may interface with other integrated circuits compatible with different voltage levels.

    摘要翻译: 一种技术通过转换晶体管向集成电路的核心部分提供片上电压。 片上电压可能是内部电压降低,小于集成电路的VCC。 在一个实施例中,转换晶体管的布局(或物理结构)分布在芯部分周围。 通过为内核提供降低的电压,集成电路可以与与不同电压电平兼容的其他集成电路接口。

    Integrated circuit output driver circuitry with programmable preemphasis
    9.
    发明授权
    Integrated circuit output driver circuitry with programmable preemphasis 有权
    具有可编程预加重功能的集成电路输出驱动器电路

    公开(公告)号:US07109743B2

    公开(公告)日:2006-09-19

    申请号:US11148046

    申请日:2005-06-07

    IPC分类号: H03K17/16

    摘要: Programmable logic device integrated circuitry having differential I/O circuitry is provided. The differential I/O circuitry may include output drivers for providing differential digital output data signals across pairs of output lines. A user may program the I/O circuitry to accommodate different high-speed differential I/O signaling standards. The user may also program the I/O circuitry to provide a desired amount of preemphasis to the output data signals.

    摘要翻译: 提供了具有差分I / O电路的可编程逻辑器件集成电路。 差分I / O电路可以包括用于在输出线对之间提供差分数字输出数据信号的输出驱动器。 用户可以对I / O电路进行编程,以适应不同的高速差分I / O信号标准。 用户还可以对I / O电路进行编程,以向输出数据信号提供期望量的预加重。

    Overvoltage-tolerant interface for integrated circuits
    10.
    发明授权
    Overvoltage-tolerant interface for integrated circuits 有权
    集成电路的过压容限接口

    公开(公告)号:US06433585B1

    公开(公告)日:2002-08-13

    申请号:US09401145

    申请日:1999-09-22

    IPC分类号: H03K19094

    摘要: An input/output driver for interfacing directly with a voltage at a pad (820) which is above a supply voltage (817) for the input/output driver. This may be referred to as an “overvoltage condition.” For example, if the supply voltage is 3.3 volts, a 5-volt signal may be provided at the pad of the input/output driver. The input/output driver will tolerate this voltage level and prevent leakage current paths. This will improve the performance, reliability, and longevity of the integrated circuit. The input/output driver includes a well-bias generator (1002) for preventing leakage current paths.

    摘要翻译: 一种用于直接与在输入/输出驱动器的电源电压(817)之上的焊盘(820)处的电压直接接口的输入/输出驱动器。 这可能被称为“过电压条件”。 例如,如果电源电压为3.3V,则可以在输入/输出驱动器的焊盘处提供5V电压信号。 输入/输出驱动器将容忍该电压电平并防止漏电流路径。 这将提高集成电路的性能,可靠性和使用寿命。 输入/输出驱动器包括用于防止泄漏电流路径的阱偏压发生器(1002)。