| Ich nutze: C-Control II Unit, CC2-Application-Board, OSOPT V3.0 |
>
> möchte gerne andere 7-Segment Anzeigen an einem SAA1064 anschlie�en. Brauche ich dafür
> Anzeigen mit gemeinsame Anode oder Kathode.
>
> GruÃ? und vielen Dank
>
> Georg Neutzer
Hallo Georg
Das wären dann 7-Segmente mit CA (common anode) für den SAA1064.
Nachstehend ein Auszug aus dem Datenblatt:
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Segment outputs
The segment outputs P1 to P16 are controllable current-sink sources. They are switched on by the
corresponding data bits and their current is adjusted by control bits C4, C5 and C6.
Multiplex outputs
The multiplex outputs MX1 and MX2 are switched alternately in dynamic mode with a frequency
derived from the clock-oscillator. In static mode MX1 is switched on. The outputs consist of an
emitter-follower, which can be used to drive the common anodes of two displays directly provided
that the total power dissipation of the circuit is not exceeded. If thisoccurs external transistors
should be connected to pins 11 and 14 as shown in Fig.5.
....
Gruss Heinz
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Re: Anode oder Kathode bei SAA1064 (von Georg Neutzer - 5.05.2005 0:21)