DATAMATH CALCULATOR MUSEUM
ViewScreen calculator w/o Date code
by Inventec in Taiwan in June 1992.
|Please notice the
housing to accommodate the additional electronics.
printed circuit board (PCB) of the TI-85 VSC is
identical with its sibbling but added a small connector
on the display board to a piggy-back PCB with the additonal driver circuits.
PCB with just one additional driver circuits and a connector for the
components of the TI-85 VSC: Toshiba T6A43 Application Specific CPU,
OTP-ROM and Suwa Seikosha SRM20256 RAM.
|This early TI-85 VSC graphing calculator 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, February 23, 2009. No reprints without written permission.