DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
This Commodore 885D
was manufactured
in September 1974 in the United States. |
The Commodore 885D is
powered by a disposable 9 Volt battery. |
| The printed circuit board
(PCB) of the Commodore 885D is centered around a
TMS0807 single-chip calculator circuit and supported by two National Semiconductor DM75492 and DM75491 display drivers.  |
Close-up view
of the TMS0807 single-chip calculator circuit. |
Close-up view
of the DM75492 display driver. |
Close-up view
of the DM75491 display driver. |
Close-up view
of the National Semiconductor NSA198 LED display module.  |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, August 29, 2024. No reprints without written permission.