发明授权
- 专利标题: Meta-hardened flip-flop
- 专利标题(中): 元硬化触发器
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申请号: US13562539申请日: 2012-07-31
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公开(公告)号: US08514000B1公开(公告)日: 2013-08-20
- 发明人: Wei-Chih Hsieh , Shang-Chih Hsieh , Chih-Chiang Chang
- 申请人: Wei-Chih Hsieh , Shang-Chih Hsieh , Chih-Chiang Chang
- 申请人地址: TW Hsin-Chu
- 专利权人: Taiwan Semiconductor Manufacturing Co., Ltd.
- 当前专利权人: Taiwan Semiconductor Manufacturing Co., Ltd.
- 当前专利权人地址: TW Hsin-Chu
- 代理机构: Eschweiler & Associates, LLC
- 主分类号: H03K3/00
- IPC分类号: H03K3/00
摘要:
Some embodiments relate to a flip-flop having a data input terminal, a data output terminal and a clock terminal. The flip-flop includes a master latch, a slave latch, and an isolation element coupled between the master latch output and slave latch. The isolation element is arranged to isolate capacitive loading seen by the output of the master latch that comes from the slave latch. In some embodiments, the master latch includes one or more drive enhancement elements on its feedforward and feedback paths. The slave latch can also include one or more drive enhancement elements on its feedforward and feedback paths. These drive enhancement elements, particularly in combination with the isolation element, may help to reduce the setup and hold times and enhance meta-stability resistance of the flip-flop relative to conventional implementations. Other embodiments are also disclosed.
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