SEMICONDUCTOR INTEGRATED CIRCUIT

摘要

Disclosed herein is a semiconductor integrated circuit including: a cell layout region including circuit cells subject to power control the supply and interruption of power to which is controlled by a power switch, and always-on circuit cell groups which are always powered after the activation; a main line laid out in the cell layout region and applied with a source or reference voltage; and first and second branch lines which branch from the main line in the cell layout region.

主权项

1. A semiconductor integrated circuit comprising:
a cell layout region including
circuit cells subject to power control the supply and interruption of power to which is controlled by a power switch, andalways-on circuit cell groups which are always powered after the activation; a main line laid out in the cell layout region and applied with a source or reference voltage; and first and second branch lines which branch from the main line in the cell layout region; wherein the circuit cells subject to power control are connected to the main line via the power switch and first branch line, and the always-on circuit cell groups include
a plurality of branch connection circuit cells which are connected to the main line via the common second branch line and always powered after the activation, andan individual connection circuit cell which is connected to the main line via an individual connection line without the second branch line and always powered after the activation.