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POWER-ON RESET SIGNAL GENERATION CIRCUIT OF SEMICONDUCTOR MEMORY APPARATUS

  • US 20110128053A1
  • Filed: 12/31/2009
  • Published: 06/02/2011
  • Est. Priority Date: 11/30/2009
  • Status: Active Grant
First Claim
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1. A power-on reset signal generation circuit of a semiconductor memory apparatus, comprising:

  • an external voltage level detector configured to detect an external voltage and generate an external voltage detection signal;

    a band gap voltage generation unit configured to generate a band gap voltage in response to the external voltage detection signal;

    a level detection voltage dividing unit configured to divide the external voltage depending upon a level of the band gap voltage and generate a division voltage; and

    a power-on reset signal generation unit configured to compare the level of the band gap voltage with a level of the division voltage and generate a power-on reset signal.

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