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 reveals a big surprise! The printed circuit board (PCB) was dramatically changed compared to the TI-82 STATS and even the 32k Bytes Static RAM dropped.

We know a similar 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 Bytes Flash ROM
Spansion 29AL004
512k Bytes 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 Z80 microprocessor with 6 MHz and incorporates the 32k Bytes RAM and some supporting logic. Learn more about the Hardware Architecture of TI’s Graphing Calculators. 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.  

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