Patent ID: 7116128
Filing Date: 2006-10-03
Classification: G06F,H03K,H04L

Abstract:
1. A semiconductor device comprising: a pad; an output circuit including a P channel MOS transistor connected between said pad and a first voltage node, and an N channel MOS transistor connected between said pad and a second voltage node; and a terminating circuit connected to said pad, and including a first terminating resistance element having one end connected to said pad, first and second P channel terminating unit transistors connected in parallel between another end of said first terminating resistance element and said first voltage node and sharing a first drain impurity region coupled to the other end of said first terminating resistance element, a second terminating resistance element having one end connected to said pad, and first and second N channel terminating unit transistors connected in parallel between another end of said second terminating resistance element and said second voltage node and sharing a second drain impurity region coupled to the other end of said second terminating resistance element.