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Additional Pictures 

 

The sales box of the TI-620 sold around 1994 in the Germany.

This Texas Instruments TI-620 was manufactured in December 1993 by
Inventec in Malaysia (Date code I-1293 mth 12 yr 1993).

The printed circuit board (PCB) of the TI-620 is centered around an Inventa LI3163 single-chip calculator circuit.
Please notice the empty space for the backup battery. 

Close-up view of the Inventa LI3163 single-chip calculator circuit.

 
 Close-up view of the PCB-Mark of a TI-620.

 


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

Joerg Woerner, January 20, 2011. No reprints without written permission.