发明授权
US07177212B2 Method and apparatus for reducing leakage current in a read only memory device using shortened precharge phase
有权
使用缩短的预充电阶段来减少只读存储器件中的泄漏电流的方法和装置
- 专利标题: Method and apparatus for reducing leakage current in a read only memory device using shortened precharge phase
- 专利标题(中): 使用缩短的预充电阶段来减少只读存储器件中的泄漏电流的方法和装置
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申请号: US10764150申请日: 2004-01-23
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公开(公告)号: US07177212B2公开(公告)日: 2007-02-13
- 发明人: Dennis E. Dudeck , Donald Albert Evans , Richard Joseph McPartland , Hai Quang Pham
- 申请人: Dennis E. Dudeck , Donald Albert Evans , Richard Joseph McPartland , Hai Quang Pham
- 申请人地址: US PA Allentown
- 专利权人: Agere Systems Inc.
- 当前专利权人: Agere Systems Inc.
- 当前专利权人地址: US PA Allentown
- 主分类号: G11C7/12
- IPC分类号: G11C7/12
摘要:
A method and apparatus are provided for reducing leakage current in a read only memory device. Leakage current is reduced by reducing the duration of the precharge cycle during each read cycle so that the associated leakage current will flow for a shorter time period during each cycle. The precharge phase is positioned at the beginning of each read cycle, prior to the evaluation phase. The precharge phase is terminated by a subsequent clock edge or by an internal time out prior to a subsequent clock edge. The time interval between when the columns reach their precharge voltage and the evaluation phase begins is reduced.
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