发明授权
US6011749A Integrated circuit having output timing control circuit and method
thereof
失效
具有输出定时控制电路的集成电路及其方法
- 专利标题: Integrated circuit having output timing control circuit and method thereof
- 专利标题(中): 具有输出定时控制电路的集成电路及其方法
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申请号: US49221申请日: 1998-03-27
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公开(公告)号: US6011749A公开(公告)日: 2000-01-04
- 发明人: Alan S. Roth , Scott G. Nogle
- 申请人: Alan S. Roth , Scott G. Nogle
- 申请人地址: IL Schaumburg
- 专利权人: Motorola, Inc.
- 当前专利权人: Motorola, Inc.
- 当前专利权人地址: IL Schaumburg
- 主分类号: G11C7/22
- IPC分类号: G11C7/22 ; G11C8/00
摘要:
An integrated circuit memory having a plurality of memory cells, output timing control means including frequency measurement means providing a frequency measurement count corresponding to a first frequency of the external clock signal and delay control means generating a delayed clock signal at the first frequency, wherein the delayed clock signal is delayed in time from the external clock signal in proportion to the first frequency, and data output control means outputting data from the plurality of memory cells responsive to the delayed clock signal. A method for adjusting output timing in a memory device including the steps of receiving an external clock signal, measuring a frequency of the external clock signal, generating a frequency count, determining an output delay proportional to the frequency, and generating an output clock at the external frequency and delayed from the external clock signal in proportion to the frequency.
公开/授权文献
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