发明授权
US4536720A Programmable oscillator with power down feature and frequency adjustment
失效
具有断电功能和频率调节的可编程振荡器
- 专利标题： Programmable oscillator with power down feature and frequency adjustment
- 专利标题（中）： 具有断电功能和频率调节的可编程振荡器
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申请号： US551451申请日： 1983-11-14
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公开(公告)号： US4536720A公开(公告)日： 1985-08-20
- 发明人: Hayden C. Cranford, Jr. , Stacy J. Garvin
- 申请人： Hayden C. Cranford, Jr. , Stacy J. Garvin
- 申请人地址： NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： NY Armonk
- 主分类号： H01L27/10
- IPC分类号： H01L27/10 ; G11C11/407 ; H01L21/822 ; H01L21/8247 ; H01L27/04 ; H01L29/788 ; H01L29/792 ; H03K3/03 ; H03K3/354 ; H03K3/70
摘要：
A programmable oscillator is provided for use on an integrated circuit chip. The oscillator includes a plurality of inverter delay stages connected in tandem between an input and an output node. A single FET device couples a node common to all of the inverter delay stages to a ground potential. Another FET device controls the input node. When a logic enabling signal is appropriately applied to the FET devices, the oscillator is controlled so that internal nodes of the oscillator float high when it is off and no energy is dissipated. In addition, the amount of delays between the delay stages and the input stage of the load is such that the load supplies the greater ratio of delays. This ensures that the oscillator's frequency of oscillation tracks the switching speed of the load.
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