The semiconductor device includes a first channel region suitable for including a first pad region and a first core region and receiving a first power signal through a first power line, a second channel region suitable for including a second pad region and a second core region and receiving the first power signal through a second power line, and a switch unit suitable for electrically disconnecting the second power line from a first power stabilization unit if a predetermined operation of the first channel region is performed and electrically disconnecting the first power line from the first power stabilization unit if the predetermined operation of the second channel region is performed.