Hallo!

Ich habe es vereinfacht mit Schalter skizziert.
Code:
                  VCC
                   + .----.
                   | |  / |
                   +--o/ o--------+------+------+------+------+
                   | |    |       |      |      |      |      |
                   | |  / |  +-|<-+ +-|<-+ +-|<-+ +-|<-+ +-|<-+
                   +--o/ o---|----+-|----+-|----+-|----+-|----+
                   | |    |  |    | |    | |    | |    | |    |
                   | |  / |  +-|<-+ +-|<-+ +-|<-+ +-|<-+ +-|<-+
                   +--o/ o---|----+-|----+-|----+-|----+-|----+
                   | |    |  |    | |    | |    | |    | |    |
                   | |  / |  +-|<-+ +-|<-+ +-|<-+ +-|<-+ +-|<-+
     Zeilentreiber +--o/ o---|----+-|----+-|----+-|----+-|----+
                   | |    |  |    | |    | |    | |    | |    |
                   | |  / |  +-|<-+ +-|<-+ +-|<-+ +-|<-+ +-|<-+
                   +--o/ o---|----+-|----+-|----+-|----+-|----+
                   | |    |  |    | |    | |    | |    | |    |
                   | |  / |  +-|<-+ +-|<-+ +-|<-+ +-|<-+ +-|<-+
                   +--o/ o---|----+-|----+-|----+-|----+-|----+
                   | |    |  |    | |    | |    | |    | |    |
                   | |  / |  +-|<-+ +-|<-+ +-|<-+ +-|<-+ +-|<-+
                   +--o/ o---|----+-|----+-|----+-|----+-|----+
                     '----'  |    | |    | |    | |    | |    |
                             +-|<-+ +-|<-+ +-|<-+ +-|<-+ +-|<-+
                           .-|------|------|------|------|----.
                           | o      o      o      o      o    |
            Spaltentreiber |  /      /      /      /      /   |
                           | o      o      o      o      o    |
                           '-|------|------|------|------|----'
                             +------+------+------+------+
                                           |
                                          ===
                                          GND

(created by AACircuit v1.28.6 beta 04/19/05 www.tech-chat.de)