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专利名称：Sense amplifier circuit having a power supply
switching circuit
发明人：Takeo Obata申请号：US07/556842申请日：19900723公开号：US05079449A公开日：19920107
摘要：A sense amplifier circuit has a sense amplifier disposed on a bit line of an ANDarray circuit; a switch for selecting an output of the sense amplifier; a power switch forthe sense amplifier; and a device for turning the power switch on by using a turning-onsignal with respect to the switch for selecting the output of the sense amplifier. Whenthe output of the sense amplifier is selected by the switch, the power switch is turned onby using the turning-on signal of this switch so that the sense amplifier is operated. Whena turning-off signal is transmitted from the switch of the sense amplifier and the outputof the sense amplifier is not selected, the power switch is turned off by this turning- offsignal.
申请人：RICOH COMPANY, LTD.
代理机构：Cooper & Dunham
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