发明授权
- 专利标题: Voltage recovery circuit and method therefor
- 专利标题(中): 电压恢复电路及其方法
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申请号: US53896申请日: 1998-04-02
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公开(公告)号: US6008677A公开(公告)日: 1999-12-28
- 发明人: Cheri Lynn Harrington , Thomas Jew , Kishna Weaver , Thomas R. Toms , Yongliang Wang
- 申请人: Cheri Lynn Harrington , Thomas Jew , Kishna Weaver , Thomas R. Toms , Yongliang Wang
- 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: G11C5/14
- IPC分类号: G11C5/14 ; G11C16/20 ; G11C16/30 ; G11C13/00
摘要:
A method an apparatus for performing a reset operation in an integrated circuit where a memory programming voltage is recovered allowing use of the memory during reset. The voltage recovery unit includes a high voltage conversion portion active for a first recovery period, and a low voltage conversion portion active for a subsequent second recovery period, the low voltage conversion portion is inactive for the first recovery period. The first and second recovery portions are responsive to assertion of a reset signal and an intermediate reset signal generated before the end of the reset period. Recovery of the programming voltage allows uncorrupted retrieval and use of a configuration word during reset. The high voltage conversion portion includes p-channel devices with robust breakdown resistance, and the low voltage conversion portion includes n-channel devices which provides improved speed of operation.
公开/授权文献
- USD381560S Bread server 公开/授权日:1997-07-29
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