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Interface for low-voltage semiconductor devices

DC
  • US 6,342,794 B1
  • Filed: 07/24/2000
  • Issued: 01/29/2002
  • Est. Priority Date: 05/28/1996
  • Status: Expired due to Term
First Claim
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1. An integrated circuit comprising:

  • a output driver coupled between a first noisy supply at a first voltage level and a pin;

    a voltage down converter coupled between a first quiet supply at the first voltage level and a first node at a second voltage level, wherein the second voltage level is lower than the first voltage level;

    a core circuit coupled to the first node, wherein the core circuit comprises programmable logic; and

    a level shifting predriver, coupled between a control electrode of the output driver and the core circuit, wherein the predriver generates a voltage high output at the first voltage level and the core circuit generates a voltage high output at a second voltage level.

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