Patent ID: 6154062
Filing Date: 2000-11-28
Classification: G11C,H03K

Abstract:
A semiconductor integrated circuit operated by an operating voltage whose absolute value is 2V or below, comprising:a plurality of circuit blocks;at least two terminals through which a desired operating voltage of said circuit blocks is applied; anda current control circuit provided between each of said circuit blocks and at least one of said circuit terminals,wherein each of said plurality of circuit blocks includes an MIS transistor in which a leakage current flows between a drain and a source of said MIS transistor even under a condition that a gate voltage is equal to a source voltage in said MIS transistor, andsaid current control circuit controls said leakage current in each of said circuit blocks, anda certain one of said circuit blocks logically operates during a period including a part of the period in which said leakage current in at least another one of said circuit blocks is controlled by said current control circuit, andsaid leakage current is controlled by said current control circuit during a period including a part of the period in which at least another one said circuit blocks logically operates.