发明授权
US07065668B2 Apparatus for selecting and outputting either a first clock signal or a second clock signal 失效
用于选择和输出第一时钟信号或第二时钟信号的装置

  • 专利标题: Apparatus for selecting and outputting either a first clock signal or a second clock signal
  • 专利标题(中): 用于选择和输出第一时钟信号或第二时钟信号的装置
  • 申请号: US10936986
    申请日: 2004-09-09
  • 公开(公告)号: US07065668B2
    公开(公告)日: 2006-06-20
  • 发明人: Tsukasa KosudaMotomu Hayakawa
  • 申请人: Tsukasa KosudaMotomu Hayakawa
  • 申请人地址: JP Tokyo
  • 专利权人: Seiko Epson Corporation
  • 当前专利权人: Seiko Epson Corporation
  • 当前专利权人地址: JP Tokyo
  • 代理商 Mark P. Watson
  • 优先权: JP2000-100122 20000331; JP2000-100123 20000331; JP2001-91111 20010327
  • 主分类号: G06F1/04
  • IPC分类号: G06F1/04
Apparatus for selecting and outputting either a first clock signal or a second clock signal
摘要:
By using a CR oscillating circuit and a PLL oscillating circuit selectively, these two oscillating circuits are used as a high frequency, low power consumption, short waiting time for stable oscillation, and low operating voltage oscillating circuit.
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