发明申请
- 专利标题: Integrated Circuit Devices Having Level Shifting Circuits Therein
- 专利标题(中): 具有电平转换电路的集成电路器件
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申请号: US12486176申请日: 2009-06-17
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公开(公告)号: US20090315610A1公开(公告)日: 2009-12-24
- 发明人: Hee-Seok Han , Hyoung-Rae Kim
- 申请人: Hee-Seok Han , Hyoung-Rae Kim
- 优先权: KR10-2008-0059521 20080624
- 主分类号: H03L5/00
- IPC分类号: H03L5/00
摘要:
Level shifting circuits generate multiple tracking signals that are in-phase with an input signal, but are also level-shifted with wider voltage swings relative to the input signal. These input tracking signals are provided as separate inputs to an inverter having at least one PMOS pull-up transistor and at least one NMOS pull-down transistor therein. A level shifting circuit may include a differential input circuit, which is responsive to true and complementary input signals. A first load circuit is electrically coupled to the differential input circuit. This first load circuit is configured to generate first and second tracking signals at respective first and second nodes therein. These first and second tracking signals are in-phase, level-shifted versions of each other, and have respective voltage swings that are greater than a voltage swing of the complementary input signals. The inverter includes a pull-up transistor responsive to the first tracking signal and a pull-down transistor responsive to the second tracking signal.
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