Invention Grant
US08130017B2 Semiconductor device having a delay locked loop responsive to skew information and method for driving the same 有权
具有响应于偏斜信息的延迟锁定环路的半导体器件及其驱动方法

  • Patent Title: Semiconductor device having a delay locked loop responsive to skew information and method for driving the same
  • Patent Title (中): 具有响应于偏斜信息的延迟锁定环路的半导体器件及其驱动方法
  • Application No.: US13149192
    Application Date: 2011-05-31
  • Publication No.: US08130017B2
    Publication Date: 2012-03-06
  • Inventor: Ki-Won Lee
  • Applicant: Ki-Won Lee
  • Applicant Address: KR Gyeonggi-do
  • Assignee: Hynix Semiconductor Inc.
  • Current Assignee: Hynix Semiconductor Inc.
  • Current Assignee Address: KR Gyeonggi-do
  • Agency: IP & T Group LLP
  • Priority: KR2007-0047500 20070516; KR2007-0064134 20070628
  • Main IPC: H03L7/06
  • IPC: H03L7/06
Semiconductor device having a delay locked loop responsive to skew information and method for driving the same
Abstract:
A delay locked loop includes: a control voltage generator configured to generate a voltage control signal having a voltage level corresponding to a phase difference between an external clock and a feedback clock; a voltage controlled delay line configured to generate a plurality of output signals by reflecting a different delay time on the external clock in response to the voltage control signal; an internal clock multiplexer configured to output one of the plurality of output signals as an internal clock in response to a skew information signal; a delay replica model configured to output the feedback clock by reflecting a delay of an actual clock/data path on the internal clock; and a skew information signal generator configured to generate the skew information signal.
Information query
Patent Agency Ranking
0/0