In the frame of the ESA/ESTEC Safeguard Data Recorder study a highly reliable NAND-Flash based memory system for use in space was developed. As for all space borne semiconductor memories specific measures against radiation induced data errors and malfunctions are mandatory in order to maintain the required high data integrity. For this purpose an Orthogonal Reed-Solomon Error Correction in combination with an Orthogonal Data Commutation is applied. Additionally algorithms to detect and to cope with radiation induced Single Event Functional Interrupts are implemented. In a demonstration model these functions were realized in a Field Programmable Gate Array. An associated file system enables an easy access to data structures of variable size. The demonstration model is ready for integration into the ESA/ESTEC 'Aviation Lab'. A representative version of the memory core is going to be flown on PROBA-2. Finally NAND-Flash usage for telemetry buffer memories is discussed.


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    Title :

    NAND-flash memory technology in mass memory systems for space applications


    Additional title:

    NAND-Flash-Speichertechnologien in Massenspeichersystemen für Raumfahrtanwendungen


    Contributors:


    Publication date :

    2008


    Size :

    6 Seiten, 4 Bilder, 1 Tabelle, 10 Quellen




    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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