Abstract: A semiconductor device includes an internal circuit for deciding an internal state, as well as a Vcc supply interconnection and a reference supply interconnection having ends disposed at the vicinity of an input terminal of the internal circuit. Either an end of the Vcc supply interconnection or an end of the reference supply potential is connected to an input terminal of the internal circuit in accordance with a specification of the semiconductor device. A connecting portion for this connection has portions, which are opposed to each other with a space smaller than a diameter of a wire for bonding and are connected by material of the wire in a wire bonding step. These structures can facilely comply with change of the specification, and an area required for interconnections is reduced in the semiconductor device.