Patent ID: 6246255
Filing Date: 2001-06-12
Classification: G06F,H04L

Abstract:
An IC for an active terminator for a bus, said IC comprising:a plurality of pairs each of a buffer amplifier and a terminal resistor, each of said pair corresponding to a different line of said bus, said buffer amplifier serving to output a specified voltage through said terminal resistor and a bonding pad to said corresponding line, said bonding pad not being connected directly to any other similarly structured bonding pad;a similar pair, not corresponding to any of the lines of said bus, of an additional buffer amplifier and an additional resistor,a pair of pads, one end of said additional resistor being connected to said additional buffer amplifier and the other end of said additional resistor being connected to said pair of pads;adjustment resistors each connected to a different one of the terminal resistors and the additional resistors;adjustment buffer amplifiers each connected to a different one of said adjustment resistors and serving to output a specified voltage through a corresponding one of said adjustment resistors to a corresponding line of said bus;control lines connected to said adjustment buffer amplifiers to transmit control signals for controlling output conditions of said adjustment buffer amplifiers, said control lines being grouped together into common lines;repair parts provided in said common lines for connecting or disconnecting said common lines.