DATAMATH CALCULATOR MUSEUM
|This TI-81 with
the Date code I-1192 was manufactured
by Inventec in Taiwan in November 1992.
(printed circuit board) of the TI-81 manufactured in November 1992
looks familiar to us with the battery contact in the center.
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.
graphing calculator manufactured end of 1992 makes use of three display drivers
Two T6A39 column drivers and one T6A40 row driver.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, January 31, 2009. No reprints without written permission.