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Forum wie verbinde ich VCC, wenn es 2 verschiedene VCC gibt?
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  • vcc
  • connect vcc
Related

wie verbinde ich VCC, wenn es 2 verschiedene VCC gibt?

nikodemus
nikodemus over 7 years ago

Hi,

in meiner Schaltung gibt es ein VCC-5V und ein VCC-3.3V.

Das Schaltplansymbol für einen 74AC245 hat keinen VCC-Pin im Schaltplan. Nur beim Auswählen in der Bibliothek sieht man neben dem Schaltplansymbol ein "VCC 20", was bedeutet, dass VCC an Pin 20 anliegt. An diesen Pin möchte ich VCC-3.3V anschließen.

 

Ein Symbol für einen VCC-Anschluss gibt es in der Bibliothek auch, aber es wird im Schaltplan stets mit "VCC" angegeben, auch wenn ich den Namen auf "VCC-3.3V" ändere.

 

Wie verbinde ich nun Pin 20 des 74AC245, der im Schaltplansymbol nicht vorkommt, mit dem Anschluss VCC-3.3V?

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  • nikodemus
    0 nikodemus over 7 years ago

    hi,

    I found the solution:

    The invoke command allows to get the power supply pins into the schematic, and then they can be connected.

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