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    • 11. 发明专利
    • Calibration circuit
    • 校准电路
    • JP2008135925A
    • 2008-06-12
    • JP2006319937
    • 2006-11-28
    • Elpida Memory Incエルピーダメモリ株式会社
    • YOKO HIDEYUKI
    • H03K19/0175H01L21/822H01L27/04H03K19/0948
    • G01R31/31713G11C29/02G11C29/022G11C29/028
    • PROBLEM TO BE SOLVED: To provide a calibration circuit which is capable of carrying out sufficient calibration operation even in the case where the frequency of an external clock is high. SOLUTION: The calibration circuit comprises: a first replica buffer 110 including the substantially same circuit configuration as a pull-up circuit constituting an output buffer; and a second replica buffer 130 including the substantially same circuit configuration as a pull-down circuit constituting the output buffer. When a first calibration command ZQCS is issued, both of control signals ACT1, ACT2 are activated to simultaneously perform calibration operations on the first and second replica buffers 110, 130. When a second calibration command ZQCL is issued, the control signals ACT1, ACT2 are alternately activated to alternately perform calibration operations on the first and second replica buffers 110, 130. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:即使在外部时钟的频率高的情况下,也能够提供能够执行足够的校准操作的校准电路。 校准电路包括:第一复制缓冲器110,其包括与组成输出缓冲器的上拉电路基本相同的电路配置; 以及第二复制缓冲器130,其包括与组成输出缓冲器的下拉电路基本相同的电路配置。 当发出第一校准命令ZQCS时,激活控制信号ACT1,ACT2同时对第一和第二复制缓冲器110,130执行校准操作。当发出第二校准命令ZQCL时,控制信号ACT1,ACT2为 交替地激活以在第一和第二复制缓冲器110,130上交替执行校准操作。版权所有(C)2008,JPO&INPIT
    • 20. 发明专利
    • Semiconductor integrated circuit device
    • 半导体集成电路设备
    • JP2007157944A
    • 2007-06-21
    • JP2005349893
    • 2005-12-02
    • Matsushita Electric Ind Co Ltd松下電器産業株式会社
    • TANAKA ISAO
    • H01L21/822G01R31/28G01R31/3183H01L21/82H01L27/04
    • G01R31/31713G01R31/312G01R31/315G01R31/318533H01L2924/0002H01L2924/00
    • PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit device capable of easily performing a circuit design of a system LSI designed by incorporating in combination large scale circuits, particularly circuits using a plurality of IPs or the like.
      SOLUTION: The semiconductor integrated circuit device includes a driving part 101 connected with a driven circuit 104 via a transmission line for supplying to the driven circuit 104 a driving signal for driving the driven circuit 104; a switch 102 inserted into a transmission line between the driven circuit 104 and the driving part 101 for making the driving signal supplied to the driven circuit 104 pass or interrupting the same; and a transmitter 103 connected to the transmission line between the switch 102 and the driving part 101, for transmitting an external test signal supplied from the outside of the semiconductor integrated circuit device to the driven circuit 104.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 解决的问题:提供一种半导体集成电路器件,其能够容易地执行通过组合大规模电路而设计的系统LSI的电路设计,特别是使用多个IP等的电路。 解决方案:半导体集成电路器件包括通过传输线与驱动电路104连接的驱动部分101,用于向驱动电路104提供驱动驱动电路104的驱动信号; 插入驱动电路104和驱动部101之间的传输线的开关102用于使提供给从动电路104的驱动信号通过或中断; 以及连接到开关102和驱动部分101之间的传输线的发射机103,用于将从半导体集成电路装置的外部提供的外部测试信号发射到驱动电路104.版权所有(C)2007 ,JPO&INPIT