Semiconductor integrated circuit having transistors for cutting-off subthreshold current

Abstract

A semiconductor integrated circuit which enables a subthreshold current to be suppressed when a logic gate circuit group is nonactivated and enables the logic gate circuit group to be activated at a high speed is provided. The semiconductor integrated circuit has at least one logic gate circuit connected to a feed line, a first transistor serially connected to the feed line in order to suppress the subthreshold current flowing in the logic gate circuit upon nonactivation of the logic gate circuit and a second transistor which is connected in parallel to the first transistor. The second transistor is activated prior to activation of the logic gate circuit and the first transistor.

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