Semiconductor integrated circuit

摘要

A semiconductor integrated circuit includes: a main-interconnect to which supply voltage or reference voltage is applied; a plurality of sub-interconnects; a plurality of circuit cells configured to be connected to the plurality of sub-interconnects; a power supply switch cell configured to control, in accordance with an input control signal, connection and disconnection between the main-interconnect and the sub-interconnect to which a predetermined one of the circuit cells is connected, of the plurality of sub-interconnects; and an auxiliary interconnect configured to connect the plurality of sub-interconnects to each other.

主权项

1. A semiconductor integrated circuit comprising:
a plurality of circuit cells; a first main line to which a power supply voltage or a reference voltage is applied, the first main line extending in one direction; a second main line to which the same voltage with the first main line is applied, the second main line extending in a different direction perpendicular to the one direction; a plurality of branch lines extending in the different direction, each of the branch lines being shared by predetermined ones of the plurality of circuit cells disposed in the different direction; a power supply switch transistor for controlling connection and disconnection between the branch line and the second main line in response to a control signal input thereto; and an auxiliary line extending in the one direction, for connecting the plurality of branch lines to each other, wherein the second main line and the branch line are arranged in parallel with each other, and wherein the predetermined ones of the plurality of circuit cells are arranged both sides of the power supply switch transistor.