DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| This TI-81 with
the Date code I-1192 was manufactured by Inventec in Taiwan in November 1992.
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| The PCB
(printed circuit board) of the TI-81 manufactured in November 1992 looks familiar to us with the battery contact in the center.
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| The main
components of the TI-81: Toshiba T6A43 Application Specific CPU,
Sharp LH5359 ©1991 ROM and Sharp LH5160 RAM. All Integrated Circuits of
the calculator were manufactured not later than July 1990.
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| This TI-81
graphing calculator manufactured end of 1992 makes use of three display drivers
: Two T6A39 column drivers and one T6A40 row driver.
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If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, January 31, 2009. No reprints without written permission.
