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Method and apparatus for buffering signals in voltage domains

  • US 7,948,292 B1
  • Filed: 06/05/2008
  • Issued: 05/24/2011
  • Est. Priority Date: 09/28/2007
  • Status: Expired due to Fees
First Claim
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1. An integrated circuit comprising:

  • a switch operatively coupled to a selectably on voltage supply grid, the switch having a first node and a second node and operative to selectively turn on and off the selectably on voltage supply grid, the selectably on voltage supply grid operatively coupled to a positive voltage supply grid; and

    a buffer cell cluster operatively coupled to the selectably on voltage supply grid,wherein the buffer cell cluster comprises at least one initial buffer cell and a pair of insulator cells and is operatively coupled to the positive voltage supply grid, and wherein the at least one initial buffer cell is operative to buffer a feed-through signal having an activation voltage level defined substantially at the voltage level of the positive voltage supply grid.

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