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Additional Pictures 

 

The display of the TI-80 is very difficult to read with 
only 48*64 dots to show 8 lines of 16 characters.

This TI-80 with the Date code I-1296 was manufactured by Inventec in Taiwan in
December 1996. Please notice the battery compartment with only two CR2032 Lithium
batteries instead the 4+1 batteries of the other graphing calculators.

The printed circuit board (PCB) of the TI-80 reduced the number of
components dramatically compared with its sibblings.

The main components of the TI-80: Toshiba T6M53A Application Specific CPU,
Sharp LH5359@1995 ROM and Suwa Seikosha SRM2264 RAM.

The Toshiba T6M53A Application Specific CPU manufactured in 1995.

The Toshiba T6B79 display driver of the TI-80 in a small
COB housing mounted on a second PCB.


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

Joerg Woerner, February 11, 2009. No reprints without written permission.