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Internal voltage level control circuit and semiconductor memory device as well as method of controlling the same

  • US 7,397,710 B2
  • Filed: 01/31/2007
  • Issued: 07/08/2008
  • Est. Priority Date: 07/25/2000
  • Status: Expired due to Fees
First Claim
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1. An internal voltage level control circuit for controlling an activation and an inactivation of an internal voltage generating circuit which generates an internal voltage from an external power voltage,wherein the internal voltage is compared to at least one of a first predetermined voltage and a second predetermined voltage that define a predetermined voltage range,wherein when the internal voltage is within the predetermined voltage range, the internal voltage generating circuit is inactivated,wherein the internal voltage generating circuit includes a boost circuit for boosting the external power voltage, wherein the boost circuit is controlled based on at least one of the first predetermined voltage and the second predetermined voltage, andwherein the internal voltage generating circuit includes a circuit for dropping the external power voltage.

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