公开(公告)号：JPH10313244A

公开(公告)日：1998-11-24

申请号：JP8196698

申请日：1998-03-27

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GABARA THADDEUS JOHN ,  RUDNICK ROBERT E

IPC: G06F3/00 ,  H03K19/0175 ,  H04L12/40 ,  H04L25/02

Abstract: PROBLEM TO BE SOLVED: To reduce the distortion and ringing of a communication signal transmitted onto a bus transmission line while reducing driver power by connecting damping impedance to a component. SOLUTION: The integrated circuit component 20c has a controllable damping impedance element 60 inside. The impedance element 60 has an impedance element 66 and a switch 68 which are connected to an interface 46. In operation, the impedance element 66 is switched by a switch 68 between a closure position connected to the component 20c and an opening position which is separated. The characteristic value of the impedance element 66 is selected according to, for example, a signal level which should be sent onto the bus transmission line 24.