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High speed IO buffer

  • US 20080079457A1
  • Filed: 09/29/2006
  • Published: 04/03/2008
  • Est. Priority Date: 09/29/2006
  • Status: Active Grant
First Claim
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1. An IO buffer for driving and receiving operations, the buffer comprising:

  • a driver, comprising;

    a first switch;

    a first resistive element serially coupled to the first switch;

    a second resistive element coupled to the first resistive element via an output node; and

    a second switch serially coupled to the second resistive element; and

    a receiver, comprising;

    a third switch;

    a third resistive element serially coupled to the third switch;

    a fourth resistive element coupled to the third resistive element via the output node; and

    a fourth switch serially coupled to the fourth resistive element;

    wherein in a receiving mode, at least one of the first and the second switches is turned on.

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