Semiconductor integrated circuit device
    3.
    发明授权
    Semiconductor integrated circuit device 有权
    半导体集成电路器件

    公开(公告)号:US08179733B2

    公开(公告)日:2012-05-15

    申请号:US13080958

    申请日:2011-04-06

    IPC分类号: G11C7/00

    摘要: A clock-generating circuit for forming internal clock signals by comparing a signal obtained by delaying, through a variable delay circuit, an input clock signal input through an external terminal with the input clock signal through a phase comparator circuit, and so controlling the delay time of the variable delay circuit that they are brought into agreement with each other, wherein the clock-generating circuit and an internal circuit to be operated by the clock signals formed thereby are formed on a common semiconductor substrate, and an element-forming region in which the clock-generating circuit is formed is electrically isolated from an element-forming region in which the digital circuit is constituted on the semiconductor substrate relying upon the element-isolation technology. The power-source passages, too, are formed independently of other digital circuits.

    摘要翻译: 一种时钟发生电路,用于通过将通过可变延迟电路延迟通过外部端子输入的输入时钟信号与通过相位比较器电路的输入时钟信号相比较而获得的信号进行比较,从而控制延迟时间 的可变延迟电路,其中时钟发生电路和由其形成的时钟信号操作的内部电路形成在公共半导体衬底上,其中元件形成区域 形成时钟的电路与元件形成区电气隔离,其中数字电路依赖元件隔离技术构成在半导体衬底上。 电源通道也与其他数字电路无关地形成。

    Memory system
    10.
    发明授权

    公开(公告)号:US06519173B2

    公开(公告)日:2003-02-11

    申请号:US10161634

    申请日:2002-06-05

    IPC分类号: G11C506

    摘要: A memory system comprises a controller capable of controlling a memory operation, and memory connectors capable of mounting memory modules therein, both of which are provided on a system board. Each of the memory modules has a plurality of memory chips connected to module data wirings and module power wirings respectively. The module data wirings of each memory module are connected in series form through series paths lying within the connectors. Each individual module data wirings do not constitute branch wirings to system data wirings on the system board. Thus, such signal reflection as caused by branching from the data wirings on the system board is not developed. Since the power is supplied in parallel from the system board through parallel paths lying within the connectors, the supply of the power is stabilized.