Resistive memory device, resistive memory system, and method of operating the resistive memory system

A method is for operating a resistive memory system including a resistive memory device implemented as multi-level memory cells. The method includes setting levels of reference voltages used to determine resistance states of the multi-level memory cells, and reading data of the multi-level memory ce...

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Bibliographische Detailangaben
Hauptverfasser: Son Hong-Rak, Kong Jun Jin, Yoo Young-Geon, Shin Han-Shin, Oh Eun Chu
Format: Patent
Sprache:eng
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Zusammenfassung:A method is for operating a resistive memory system including a resistive memory device implemented as multi-level memory cells. The method includes setting levels of reference voltages used to determine resistance states of the multi-level memory cells, and reading data of the multi-level memory cells based on the reference voltages. A difference between the reference voltages used to determine a relatively high resistance state is greater than a difference between the reference voltages used to determine a relatively low resistance state.