Texas Instruments TI-82 (Red)

Date of introduction:  July 2006 Display technology:  LCD dot matrix
New price:  EUR 79.83 Display size:  8 * 16 characters
Size:  7.2" x 3.2" x 0.85"
 183 x 82 x 22 mm3
Weight:  6.0 ounces, 171 grams Serial No:  2196023352
Batteries:  4*AAA + CR1620 (35mA) Date of manufacture:  mth 06 year 2006 (F)
AC-Adapter:   Origin of manufacture:  China (S)
Precision:  14 Integrated circuits:  ASIC: TI-REF TI-738X
 Flash: S29AL004D70
 Display: Toshiba T6K04
Program steps:  28k Bytes Courtesy of:  Joerg Woerner 

TI-82STATS_FR_P1.jpg (365925 Byte)Texas Instruments introduced with the TI-82 STATS in France a Graphing calculator with some improvements compared to the original TI-82 Parcus

In 2006, when the TI-82 STATS went into sale in some other European countries like Austria, Germany, Switzerland, and United Kingdom the French market received a nationalized version with the TI-82 name plate. Known from the earlier TI-Collège, the keys (e.g. entrer), notations and even the menus were changed to French language to simplify the use by younger students. 

TI-82STATS_FR_PCB.jpg (157987 Byte)TI-82STATS_FR_1.jpg (140921 Byte)Dismantling the TI-82 reveales a big surprise! The printed circuit board (PCB) was dramatically changed compared to the TI-82 STATS and even the 32k Bytes S-RAM dropped.

We know a similiar evolution from the original TI-83 Plus to the final TI-83 Plus with only 3 main Integrated Circuits left:

Component TI-82 TI-83 Plus (2006)
(Application Specific IC)
(Read Only Memory)
Spansion 29AL004
512k Byte Flash-ROM
Spansion 29AL004
512k Byte Flash-ROM
Display driver
Toshiba T6K04
Single-chip 64*128 pixel
Novatek NT7564H
Single-chip 64*128 pixel

TI-82STATS_FR_ASIC.jpg (99691 Byte)The picture on the right gives an enhanced view of the ASIC "TI-REF TI-738X" that clocks the Z-80 microprocessor with 6 MHz and incorporates the 32k Byte RAM and some supporting logic. The ASIC was probably manufactured by Toshiba and recalls us the TI-83 Plus Silver Edition with the "TI-REF 83PL2M/TA2" ASIC and the early TI-84 Plus with its "TI-REF 83PLUSB/TA2" ASIC. This ASIC "TI-REF TI-738X" was obviously used in the revised TI-73 Explorer, too. designation on the ASIC.

TI-82STATS_FR_LC.jpg (38242 Byte)A component not easily detected on the printed circuit board (PCB) of the TI-82 is the driver circuit of the LC-Display. It is just a bare Toshiba T6K04 chip mounted on a flexible piece of circuit board attached between the display and the main PCB. 

We prepared together with fellow collector Xavier Andréani a comprehensive comparison of entry level graphing calculators, to shed some light on the different specifications of the TI-82 and TI-83 / TI-83 Plus based products.

A serial port of the calculators allows the connection to the Calculator-Based Laboratory system CBL, its successor CBL 2, the Calculator-Based Ranger CBR and its successor CBR 2.

Texas Instruments France introduced in 2008 the TI-83 In 2009 the color scheme of the TI-82 was changed to dark grey and the new entry-level Graphing calculator introduced.


TI-82STATS_FR_OS.jpg (57214 Byte)1.11fr7

You can check the ROM version of your TI-82 using the following key sequence and reading the number on your screen:

[mode] [alpha] [S]

Information provided by Xavier Andréani.  

horizontal rule

If you have additions to the above article please email:

© Joerg Woerner, May 6, 2007. No reprints without written permission.