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Texas Instruments TI-82 STATS

Date of introduction:  June 2012 Display technology:  LCD dot matrix
New price:  EUR 59.95 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:  2814004502
Batteries:  4*AAA + CR1620 (35mA) Date of manufacture:  mth 09 year 2012 (G)
AC-Adapter:   Origin of manufacture:  China (P)
Precision:  14 Integrated circuits:  ASIC: TI-REF TI-738X
 Flash: EN29AL004D70
 Display: Toshiba T6K04
Memories:      
Program steps:  28k Bytes Courtesy of:  Joerg Woerner 

Texas Instruments introduced in 2004 with the TI-82 STATS in France a Graphing calculator with some improvements compared to the original TI-82 Parcus. About two years later, in July 2006, with the TI-82 Stats.fr a Graphing calculator was nationalized for the French market.

In 2009, together with the introduction of the new entry-level Graphing calculator TI-76.fr, the design of the TI-82 Stats.fr was changed to darker colors and in 2012 the same design was available in Germany and a few other European countries with the original designation TI-82 STATS.

Dismantling this TI-82 STATS manufactured in September 2012 reveales no surprises, the printed circuit board (PCB) is identical with its French sibblings.

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.

The TI-82 STATS is based - like most Graphing calculators introduced after the TI-73 - on Flash technology, we located in this TI-82 STATS a Eon Silicon Solution Inc. 29LV400 device with 512k Bytes capacity for programs and data.

A component not easily detected on the printed circuit board (PCB) of the TI-82 STATS 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.

ROM-Versions:

1.11

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

[mode] [alpha] [S]

Information provided by Xavier Andréani.  


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If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, May 31, 2013. No reprints without written permission.