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Additional Pictures 

 

This TI-89 Graphing Calculator was manufactured in April 1999
by Inventec Corporation in Taiwan (Date code I-0499B mth 04 yr 1999).

The printed circuit board (PCB) of this early TI-89 is centered around a powerful
Motorola SC414181 Application Specific CPU. 

Close-up view of the SC414181 chip.

Close-up view of the two Epson SRM20V100 Static RAM chips.

Close-up view of the Sharp LH28F160 Flash ROM.

Close-up view of the two Sharp Drivers for the LC-Display.




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

Joerg Woerner, July 27, 2020. No reprints without written permission.