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Additional Pictures 

 

Complete Display Scanning Cycle of the µPD940 from a Lloyd's Accumatic 30 manufactured in September 1975 displaying "-104.679"
and captured with the Digilent Digital Discovery connected to the DCM-50A Platform. µPD940 Clock Frequency at 50 kHz.
Close-up view of the transition between Digit D3 displaying "6" and Digit D4 displaying "4" of the µPD940 showing the Leading and Trailing Digit Blanking Times.


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

© Joerg Woerner, November 9, 2024. No reprints without written permission.