초록 ▼

A semiconductor integrated circuit includes a function circuit which has a plurality of active elements and performs a predetermined circuit function and which is coupled between a node and a reference terminal; a potential setting circuit, coupled between a power supply terminal and the above-menti

A semiconductor integrated circuit includes a function circuit which has a plurality of active elements and performs a predetermined circuit function and which is coupled between a node and a reference terminal; a potential setting circuit, coupled between a power supply terminal and the above-mentioned node, for setting a potential at this node; and a capacitor, coupled between this node and the reference terminal, for smoothing the potential at this node. The function circuit generates a control signal and a conductance between the power supply terminal and the node is varied in response to this control signal, so that the potential setting circuit keeps the potential at this node within a predetermined range, regardless of the current consumed at the function circuit.

대표청구항 ▼

A semiconductor integrated circuit comprising: a function circuit having a plurality of active elements for performing a predetermined circuit function and generating at least one control signal, said function circuit being coupled between a node and a reference terminal and having at least two oper

A semiconductor integrated circuit comprising: a function circuit having a plurality of active elements for performing a predetermined circuit function and generating at least one control signal, said function circuit being coupled between a node and a reference terminal and having at least two operating modes; potential setting means, coupled between a power supply terminal and said node and controlled by said control signal from said function circuit, for setting the potential at said node to a predetermined value irrespective of said operating mode of said function circuit by varying a conductance between said power supply terminal and said node in response to said control signal from said function circuit; and capacitor means, coupled between said node and said reference terminal, for smoothing the potential at said node.