DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-82 Stats.fr (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 |
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| 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 |
| Memories: | |||
| Program steps: | 28k Bytes | Courtesy of: | Joerg Woerner |
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 Stats.fr 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.
Dismantling
the TI-82 Stats.fr 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 Stats.fr | TI-83 Plus (2006) |
| ASIC (Application Specific IC) |
TI-738X Z-80 CPU, RAM |
TI-738X Z-80 CPU, RAM |
| Flash-ROM (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 |
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.
A
component not easily detected on the printed circuit board (PCB) of the TI-82 Stats.fr
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
Plus.fr. In 2009 the color scheme of the
TI-82 Stats.fr was changed to dark grey and the new
entry-level Graphing calculator TI-76.fr introduced.
ROM-Versions:
1.11fr7
You can check the ROM version of your TI-82
Stats.fr using the following key sequence and reading the number on your screen:
