Patent ID: 7881026
Filing Date: 2011-02-01
Classification: H01L,H02M

Abstract:
1. A semiconductor integrated circuit on a semiconductor chip, the semiconductor integrated circuit circuit comprising: a first area which includes a plurality of terminals for connection external to said semiconductor integrated circuit; a second area which includes a plurality of buffers and protection circuits each connected to one of said terminals, and a plurality of voltage regulators which step down a first power voltage which is supplied from outside of the semiconductor integrated circuit to one of said terminals to produce at least one kind of internal power voltage which is lower than the first power voltage; a third area which includes a first internal circuit which operates based on the internal power voltage; and a fourth area which includes a second internal circuit which operates based on the first power voltage, wherein said voltage regulators are arranged at positions near the terminals for receiving the first power voltage and a ground voltage, and are connected to a power line, and wherein said power line is connected to at least one of said terminals.