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Low leakage sleep mode for dynamic circuits

  • US 6,545,512 B2
  • Filed: 08/16/2001
  • Issued: 04/08/2003
  • Est. Priority Date: 08/16/2001
  • Status: Expired due to Fees
First Claim
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1. Circuitry comprising:

  • a dynamic node;

    precharge timing circuitry coupled to the dynamic node and a voltage source for driving the node to a operating voltage state during a precharge interval responsive to a precharge signal;

    input circuitry coupled to the dynamic node for selectively pulling the dynamic node to a low voltage state during an evaluation interval responsive to one or more input signals;

    output circuitry coupled to the dynamic node and to an output node for inverting the dynamic node voltage; and

    sleep circuitry coupled to the output circuitry for selectively isolating the output node from ground during a sleep interval responsive to a sleep signal, wherein the sleep signal is functionally distinct from the precharge signal.

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