DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

Complete Display Scanning Cycle of the µPD943 from a Royal 90K (Model UA120) manufactured in November 1975 displaying "-104.679"
and captured with the Digilent Digital Discovery connected to the DCM-50A Platform. µPD943 Clock Frequency at 50 kHz.
Close-up view of the transition between Digit D3 displaying "6" and Digit D4 displaying "4" of the µPD943 showing the Leading and Trailing Digit Blanking Times.


If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, January 25, 2025. No reprints without written permission.