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VOLTAGE CONVERSION AND INTEGRATED CIRCUITS WITH STACKED VOLTAGE DOMAINS

  • US 20100259299A1
  • Filed: 04/13/2009
  • Published: 10/14/2010
  • Est. Priority Date: 04/13/2009
  • Status: Active Grant
First Claim
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1. An integrated circuit (IC) system, comprising:

  • a plurality of ICs configured in a stacked voltage domain arrangement with respect to an external power supply voltage such that a low side supply rail of at least one of the plurality of ICs is common with a high side supply rail of at least another of the plurality of the ICs;

    a reversible voltage converter coupled to power rails of each of the plurality of ICs, the voltage converter configured for stabilizing individual voltage domains corresponding to each IC; and

    one or more data voltage level shifters configured to facilitate data communication between ICs operating in different voltage domains, wherein an input signal of a given logic state corresponding to one voltage in a first voltage domain is shifted to an output signal of the same logic state at another voltage in a second voltage domain.

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