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    Semiconductor device including a prediction circuit to control a power status control circuit which controls the power status of a function circuit
    1.
    发明授权
    Semiconductor device including a prediction circuit to control a power status control circuit which controls the power status of a function circuit 有权
    半导体器件包括用于控制功率状态控制电路的预测电路，其控制功能电路的电源状态

    公开(公告)号：US07222244B2

    公开(公告)日：2007-05-22

    申请号：US09932099

    申请日：2001-08-20

    申请人： Takayuki Kawahara ,  Takehiro Shimizu ,  Fumio Arakawa ,  Hiroyuki Mizuno ,  Takao Watanabe ,  Koichiro Ishibashi

    发明人： Takayuki Kawahara ,  Takehiro Shimizu ,  Fumio Arakawa ,  Hiroyuki Mizuno ,  Takao Watanabe ,  Koichiro Ishibashi

    IPC分类号： G06F1/32

    CPC分类号： H03K19/0016 ,  H03K19/1735

    摘要： A semiconductor device having a functional circuit block with predictive power controller is provided so as to construct a system LSI manufactured in a practicable number of design steps, which is extensible and in which power is reduced. The functional circuit block includes a prediction circuit and a predictive power shutdown circuit having a power status control circuit. The prediction circuit controls a power status of the functional circuit block by using the power status control circuit, based on input information thereto. When no information is inputted for a predetermined a period of time, the power status control circuit shifts from a power status of the functional circuit block to a low-power status.

    摘要翻译： 提供具有预测功率控制器的具有功能电路块的半导体器件，以便构建以可实施的数量的设计步骤制造的系统LSI，其是可扩展的并且功率减小。 功能电路块包括具有电源状态控制电路的预测电路和预测功率关断电路。 预测电路根据其输入信息，通过使用电源状态控制电路来控制功能电路块的电源状态。 当在预定的一段时间内没有输入信息时，电源状态控制电路从功能电路块的电源状态转换为低功率状态。

    Driver circuit having a current mirror circuit
    6.
    发明授权
    Driver circuit having a current mirror circuit 失效
    具有电流镜电路的驱动电路

    公开(公告)号：US4873673A

    公开(公告)日：1989-10-10

    申请号：US126485

    申请日：1987-11-30

    申请人： Ryoichi Hori ,  Kiyoo Itoh ,  Goro Kitsukawa ,  Yoshiki Kawajiri ,  Takao Watanabe ,  Takayuki Kawahara

    发明人： Ryoichi Hori ,  Kiyoo Itoh ,  Goro Kitsukawa ,  Yoshiki Kawajiri ,  Takao Watanabe ,  Takayuki Kawahara

    IPC分类号： G11C11/4094

    CPC分类号： G11C11/4094

    摘要： A semiconductor device is provided wherein a current mirror circuit controlled by a pulse input voltage is utilized and a load is driven in such a manner that the output current of the current mirror circuit becomes a substantially constant current. Further, the output voltage of the current mirror circuit can be compared with a predetermined reference voltage by a comparator, with the current mirror circuit being controlled by the output voltage of the comparator in accordance with the result of comparison. The driver circuit can be used for driving the data lines of a dynamic random access memory or an external capacitance load. With these techniques, power consumption and peak current are reduced.

    摘要翻译： 提供一种半导体器件，其中利用由脉冲输入电压控制的电流镜像电路，并且以使得电流镜像电路的输出电流变为基本上恒定的电流的方式驱动负载。 此外，可以通过比较器将电流镜电路的输出电压与预定的参考电压进行比较，根据比较结果，电流镜电路由比较器的输出电压控制。 驱动电路可用于驱动动态随机存取存储器的数据线或外部电容负载。 利用这些技术，功耗和峰值电流降低。