A custom monolithic integrated circuit used as a direct interface between a single-wire data link and microcomputer assemblies in the harsh automotive environment is described. Unusual circuitry allows operation from a single 5-V supply with a grounded substrate despite 6-V ground differences between the nodes. The IC features a 10-mA tristate output with a voltage swing to within 1/2 V of each rail. In addition, the output maintains the high-impedance state during loss of ground and through shorts to -16 and +16 V, remains stable for unlimited capacitive loads, and provides protection from short circuits and high-voltage transients. On-chip waveshaping referenced to an external RC time constant approximates a third-order filter for precise control of rise times and radiated noise in transmitted data. The differential receiver accepts voltage levels from -6 to +12 V and filters input signals for noise immunity. Bit rates to 9600 baud are possible in the described application.


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    Titel :

    A serial bus transceiver for the automotive environment


    Weitere Titelangaben:

    Ein serieller Sende-Empfangs-Bus fuer die Kraftfahrzeugelektronik


    Beteiligte:
    Moriarty, J.K. jun. (Autor:in) / Jones, R.C. (Autor:in) / Dinkledine, T.L. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1988


    Format / Umfang :

    7 Seiten, 3 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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