Invention Grant
US4999519A Semiconductor circuit with low power consumption having emitter-coupled
logic or differential amplifier
失效
具有低功耗的半导体电路具有发射极耦合逻辑或差分放大器
- Patent Title: Semiconductor circuit with low power consumption having emitter-coupled logic or differential amplifier
- Patent Title (中): 具有低功耗的半导体电路具有发射极耦合逻辑或差分放大器
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Application No.: US277992Application Date: 1988-11-30
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Publication No.: US4999519APublication Date: 1991-03-12
- Inventor: Goro Kitsukawa , Kazumasa Yanagisawa , Takayuki Kawahara , Ryoichi Hori , Yoshinobu Nakagome , Noriyuki Hamma , Kiyoo Itoh , Hiromi Tukada
- Applicant: Goro Kitsukawa , Kazumasa Yanagisawa , Takayuki Kawahara , Ryoichi Hori , Yoshinobu Nakagome , Noriyuki Hamma , Kiyoo Itoh , Hiromi Tukada
- Applicant Address: JPX Tokyo JPX Tokyo
- Assignee: Hitachi VLSI Engineering Corporation,Hitachi Ltd.
- Current Assignee: Hitachi VLSI Engineering Corporation,Hitachi Ltd.
- Current Assignee Address: JPX Tokyo JPX Tokyo
- Priority: JPX62-305639 19871204; JPX62-315620 19871214; JPX63-8373 19880120
- Main IPC: H03K19/00
- IPC: H03K19/00
Abstract:
An ECL circuit wherein a current switch and an emitter follower are coupled, is so constructed that, in a standby mode, the current switch has its current cut off or rendered smaller than in an operating mode. In addition, the ECL circuit comprises means for decoupling a load resistance of the current switch and a base of the emitter follower in the case of cutting off the current of the current switch, or means for increasing the load resistance of the current switch in the case of rendering the current of the current switch smaller. The semiconductor circuit of the present invention can reduce the power consumption of the ECL circuit and can suppress fluctuations in the voltage levels of the outputs of the ECL circuit.
Public/Granted literature
- US5440454A Electrical connecting device and method for making same Public/Granted day:1995-08-08
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