Invention Grant
US08209560B2 Transmission system where a first device generates information for controlling transmission and latch timing for a second device 有权
传输系统,其中第一设备产生用于控制第二设备的传输和锁存定时的信息

  • Patent Title: Transmission system where a first device generates information for controlling transmission and latch timing for a second device
  • Patent Title (中): 传输系统,其中第一设备产生用于控制第二设备的传输和锁存定时的信息
  • Application No.: US12547863
    Application Date: 2009-08-26
  • Publication No.: US08209560B2
    Publication Date: 2012-06-26
  • Inventor: Toru Ishikawa
  • Applicant: Toru Ishikawa
  • Applicant Address: JP Tokyo
  • Assignee: Elpida Memory, Inc.
  • Current Assignee: Elpida Memory, Inc.
  • Current Assignee Address: JP Tokyo
  • Agency: Sughrue Mion, PLLC
  • Priority: JP2008-217343 20080826; JP2009-149749 20090624
  • Main IPC: G06F1/12
  • IPC: G06F1/12 G06F13/42 H04L7/00
Transmission system where a first device generates information for controlling transmission and latch timing for a second device
Abstract:
To provide a semiconductor device including a data input circuit and a data output circuit connected to a plurality of data input/output terminals, where at least one of the data input circuit and the data output circuit fetches data in response to multi-phase clock signals having different phases to be timing signals for fetching data, and adjusts a valid range for fetching data to be substantially uniform for each of the multi-phase clock signals. According to the present invention, the window width of data can be made uniform by individually adjusting the multi-phase clock signals that are input or output timing signals, and thus characteristics of the semiconductor device can be improved.
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