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Resistive memory apparatus with a single read/write driver

  • US 10,347,326 B2
  • Filed: 08/09/2017
  • Issued: 07/09/2019
  • Est. Priority Date: 08/10/2016
  • Status: Active Grant
First Claim
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1. A semiconductor memory apparatus comprising:

  • a bias voltage generation circuit configured to generate a bias voltage according to a read voltage or a write voltage in response to a read signal and a write signal;

    a data discrimination circuit configured to generate a set enable signal and a reset enable signal in response to data and the write signal;

    a current selection circuit configured to generate a first current in response to the read signal, the set enable signal, and the reset enable signal;

    a driver configured to receive the first current, and generate a second current in response to a voltage level of the bias voltage; and

    a first switch configured to provide the second current to a memory cell in response to the read signal and the write signal,wherein the bias voltage generation circuit includes a selection circuit configured to output the bias voltage as a feedback voltage when the read signal is enabled and output a voltage formed between the driver and the memory cell as the feedback voltage when the read signal is disabled.

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