发明申请
- 专利标题： SEMICONDUCTOR DEVICE INCLUDING SWITCH FOR COUPLING POWER LINE
- 专利标题（中）： 包括用于耦合电源线的开关的半导体器件
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申请号： US13184214申请日： 2011-07-15
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公开(公告)号： US20110267097A1公开(公告)日： 2011-11-03
- 发明人: Kenichi KAWASAKI
- 申请人： Kenichi KAWASAKI
- 申请人地址： JP Kawasaki
- 专利权人： FUJITSU LIMITED
- 当前专利权人： FUJITSU LIMITED
- 当前专利权人地址： JP Kawasaki
- 优先权： JP2007-214072 20070820
- 主分类号： H03K19/003
- IPC分类号： H03K19/003
摘要：
A semiconductor device whose operational state is switched between a test state and a normal operational state according to a logical value of a signal input from the outside is provided. The semiconductor device includes a first power line, a second power line, a switch that is controlled by a signal line to couple/isolate the first power line to/from the second power line, a control circuit that outputs a control signal, and a state switching circuit that drives the signal line to couple/isolate the first power line to/from the second power line according to a logical value of the control signal when the input signal is one of logical values, whereas the state switching circuit drives the signal line to couple the first power line to the second power line when the first signal is the other logical value.
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