Patent ID: 7358759
Filing Date: 2008-04-15
Classification: G06F,H03K,H04L

Abstract:
1. A semiconductor device comprising: a pad having first and second edge lines opposing to each other; a P channel output transistor connected between said pad and a first voltage node, disposed in an area on a side of the first edge line relative to a virtual straight line located between the first and second edge lines, and driving said pad in accordance with an internal signal; an N channel output transistor connected between said pad and a second voltage node, and disposed in an area on a side of the second edge line relative to said virtual straight line, and driving said pad in accordance with an internal signal; a P side terminating circuit disposed in an area on a side of the first edge line relative to said virtual straight line, and including a first terminating resistance element and a P channel terminating transistor connected in series between said pad and the first voltage node; and an N side terminating circuit disposed in an area on a side of the second edge line relative to said virtual straight line, and including a second terminating resistance element and an N channel terminating transistor connected in series between said pad and the second voltage node.