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    Semiconductor integrated circuit
    7.
    发明授权
    Semiconductor integrated circuit 有权
    半导体集成电路

    公开(公告)号：US06674318B2

    公开(公告)日：2004-01-06

    申请号：US10231082

    申请日：2002-08-30

    申请人： Kazushige Kanda ,  Tamio Ikehashi ,  Ken Takeuchi ,  Kenichi Imamiya

    发明人： Kazushige Kanda ,  Tamio Ikehashi ,  Ken Takeuchi ,  Kenichi Imamiya

    IPC分类号： G05F110

    CPC分类号： G11C7/062

    摘要： A semiconductor integrated circuit includes a limiter circuit for outputting a voltage determining flag in order to set a boosted voltage level of a booster circuit to be a predetermined value, and a monitoring circuit for monitoring a monitoring node of the limiter circuit to output a monitoring signal for the stabilization of a boosted voltage to a first external terminal. The monitoring circuit detects a first level change of the voltage determining flag from “H” to “L” after the starting of the operation of the limiter circuit, by means of a comparator, to which an external power supply voltage and external reference voltage supplied from second and third external terminals are given, and thereafter, outputs a monitoring signal for holding a constant logical level during the operation of the limiter circuit. In order to provide a voltage trimming function, a voltage intended to be set in an external terminal may be given from the outside to deactivate a feedback system of the limiter circuit to operate a resistance value of the limiter circuit to detect and store a limiter flag. Thus, there is provided a semiconductor integrated circuit capable of simply monitoring the output voltage state of an internal power supply circuit by the external terminal and easily trimming an internal voltage.

    摘要翻译： 半导体集成电路包括限幅电路，用于输出电压确定标志，以便将升压电路的升压电压设定为预定值;以及监视电路，用于监视限幅器电路的监视节点以输出监视信号 用于稳定第一外部端子的升压电压。 监控电路通过比较器检测在限制器电路的操作开始之后电压确定标志从“H”到“L”的第一电平变化，供给外部电源电压和外部参考电压 给出第二和第三外部端子，然后在限幅器电路的操作期间输出用于保持恒定逻辑电平的监视信号。 为了提供电压调整功能，可以从外部给出旨在设置在外部端子中的电压以去激活限幅器电路的反馈系统，以操作限幅器电路的电阻值以检测和存储限幅器标志 。 因此，提供了能够简单地通过外部端子监视内部电源电路的输出电压状态并容易地修整内部电压的半导体集成电路。

    Semiconductor integrated circuit
    8.
    发明授权
    Semiconductor integrated circuit 有权
    半导体集成电路

    公开(公告)号：US06469573B2

    公开(公告)日：2002-10-22

    申请号：US09731880

    申请日：2000-12-08

    申请人： Kazushige Kanda ,  Tamio Ikehashi ,  Ken Takeuchi ,  Kenichi Imamiya

    发明人： Kazushige Kanda ,  Tamio Ikehashi ,  Ken Takeuchi ,  Kenichi Imamiya

    IPC分类号： G05F110

    CPC分类号： G11C7/062

    摘要： A semiconductor integrated circuit includes a limiter circuit for outputting a voltage determining flag in order to set a boosted voltage level of a booster circuit to be a predetermined value, and a monitoring circuit for monitoring a monitoring node of the limiter circuit to output a monitoring signal for the stabilization of a boosted voltage to a first external terminal. The monitoring circuit detects a first level change of the voltage determining flag from “H” to “L” after the starting of the operation of the limiter circuit, by means of a comparator, to which an external power supply voltage and external reference voltage supplied from second and third external terminals are given, and thereafter, outputs a monitoring signal for holding a constant logical level during the operation of the limiter circuit. In order to provide a voltage trimming function, a voltage intended to be set in an external terminal may be given from the outside to deactivate a feedback system of the limiter circuit to operate a resistance value of the limiter circuit to detect and store a limiter flag. Thus, there is provided a semiconductor integrated circuit capable of simply monitoring the output voltage state of an internal power supply circuit by the external terminal and easily trimming an internal voltage.

    摘要翻译： 半导体集成电路包括限幅电路，用于输出电压确定标志，以便将升压电路的升压电压设定为预定值;以及监视电路，用于监视限幅器电路的监视节点以输出监视信号 用于稳定第一外部端子的升压电压。 监控电路通过比较器检测在限制器电路的操作开始之后电压确定标志从“H”到“L”的第一电平变化，供给外部电源电压和外部参考电压 给出第二和第三外部端子，然后在限幅器电路的操作期间输出用于保持恒定逻辑电平的监视信号。 为了提供电压调整功能，可以从外部给出旨在设置在外部端子中的电压以去激活限幅器电路的反馈系统，以操作限幅器电路的电阻值以检测和存储限幅器标志 。 因此，提供了能够简单地通过外部端子监视内部电源电路的输出电压状态并容易地修整内部电压的半导体集成电路。