Elektronika - baza wiedzy

74128 - Czterokrotne bramki buforowe NOR z 2 wejściami 50 Ohm


    +---+--+---+             +---+---*---+           ___
/1Y |1  +--+ 14| VCC         | A | B |/Y |      /Y = A+B
 1A |2       13| /4Y         +===+===*===+
 1B |3       12| 4B          | 0 | 0 | 1 |
/2Y |4   74  11| 4A          | 0 | 1 | 0 |
 2A |5  128  10| /3Y         | 1 | 0 | 0 |
 2B |6        9| 3B          | 1 | 1 | 0 |
GND |7        8| 3A          +---+---*---+
    +----------+