Invention Grant
US07751272B2 Semiconductor device and method for selection and de-selection of memory devices interconnected in series 失效
用于串联互连的存储器件的选择和取消选择的半导体器件和方法

  • Patent Title: Semiconductor device and method for selection and de-selection of memory devices interconnected in series
  • Patent Title (中): 用于串联互连的存储器件的选择和取消选择的半导体器件和方法
  • Application No.: US12025866
    Application Date: 2008-02-05
  • Publication No.: US07751272B2
    Publication Date: 2010-07-06
  • Inventor: Hong Beom Pyeon
  • Applicant: Hong Beom Pyeon
  • Applicant Address: CA Ottawa, Ontario
  • Assignee: MOSAID Technologies Incorporated
  • Current Assignee: MOSAID Technologies Incorporated
  • Current Assignee Address: CA Ottawa, Ontario
  • Main IPC: G11C8/00
  • IPC: G11C8/00
Semiconductor device and method for selection and de-selection of memory devices interconnected in series
Abstract:
A system includes a plurality of memory devices connected in-series that communicate with a memory controller. When a memory device receives a command strobe signal indicating the start of a command having an ID number, the memory device is placed in a de-selected state and the ID number is compared to the memory device's device address. Delayed versions of the command strobe signal and the command are forwarded while the memory device is in the de-selected state. If the ID number matches the device address with reference to the ID number, the memory device is placed in a selected state. In the selected state, the memory device may refrain from forwarding the delayed versions of the command strobe signal and the command, such that if there is a match, a truncated part of the command is forwarded before the memory device is placed in the selected state.
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