Hallo!
Code:
    VCC
     +
     |  ___            __
     +-|___|--+-------|  \
     |        |       |   )o+------>
     |        |   +---|__/  |
     |        |   |         |
     |        o   | +-------+
     |  +-o--__   | |
     |  |     o   +-|-------+
     | ===    |     |  __   |
     | GND    |     +-|  \  |
     |  ___   |       |   )o+
     +-|___|--+-------|__/

       Jeder Gatter z.B. 1/4 74XXX00



                       |\
              o----+---| >O-+------>
        +-o--__    |   |/   |
        |     o-+-----------+
       ===      |  |
       GND      |  +--------+
                |           |
                |      |\   |
                +------| >O-+
                       |/

       Jeder Gatter z.B. 1/6 74XXX04
MfG