Semiconductor memory device

Semiconductor memory device

  • CN 1,381,847 B
  • Filed: 02/07/2002
  • Issued: 05/12/2010
  • Est. Priority Date: 04/18/2001
  • Status: Active Grant
First Claim
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1. the energy semiconductor memory system of reading of data and refresh data simultaneously comprises:

  • Be used to receive data input circuit from the data of external circuit input;

    Be used for producing the parity checking generative circuit of parity data from the data of described data input circuit input;

    Be used to store the storer of the parity data that produces from the data of described data input circuit input with from described parity checking generative circuit;

    Be used to refresh the refresh circuit of described storer;

    Be used for the circuit that reads from described memory read data;

    When described when reading the circuit reading of data, recover the restoring circuit of the data that refreshed by described refresh circuit by the data of normally reading and corresponding parity data from other;

    Be used to export by described circuit data that read and the data output circuit of exporting by described restoring circuit data recovered of reading;

    WithBe used for directly reading and exporting the parity checking output circuit of the parity data that is stored in described storer.

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