DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-83 Plus
|Date of introduction:||June 2004||Display technology:||LCD dot matrix|
|New price:||Display size:||8 * 16 characters|
|Size:|| 7.2" x 3.2" x 0.80"
182 x 81 x 20 mm3
|Weight:||6.4 ounces, 182 grams||Serial No:||2511089854|
|Batteries:||4*AAA + CR1620 (35mA)||Date of manufacture:||mth 05 year 2004 (E)|
|AC-Adapter:||Origin of manufacture:||China (S)|
|Precision:||14||Integrated circuits:|| ASIC: Inventec
Display: Toshiba T6K04
|Program steps:||24k Bytes, 160k Bytes Flash-ROM||Courtesy of:||Joerg Woerner|
Texas Instruments introduced the original TI-83 Plus already in 1999 as the successor of the TI-83. It was an immediate success on the market and it was for a long time frame the best selling graphing calculator in the US and Canada. Texas Instruments reported more than 2,000,000 shipped units in 2000!
Glitter-packed and translucent, this is how Texas Instruments described the wonderful TI-83 Plus Silver Edition in its press release dated June 19, 2001. It took a few weeks and the basic TI-83 Plus was available more or less every year for the Back-to-School campaign in new colors:
BTS 2001: Retailer
Target introduces the TI-83 Plus Cool
Blue. This nice looking calculator
was available in Australia, too.
BTS 2002: Retailer Target introduces the TI-83 Plus Ultra Violet.
BTS 2003: Retailer Target introduces the TI-83 Plus Blue.
BTS 2004: Retailer Staples introduces this TI-83 Plus Lime Green and the TI-83 Plus Blue.
BTS 2006: Texas Instruments surprised the French market in 2006 with a translucent
TI-83 Plus Cool Blue.
BTS 2007: New design of the TI-83 Plus Cool Blue and TI France introduces the strange
looking TI-83 Plus Pink.
this TI-83 Plus manufactured in 2004 with the original design reveals a lot
of internal differences.
The original design of the TI-83 Plus made
use of 5 main Integrated Circuits:
Zilog Z84C00 microprocessor
TI REF 9815455 ASIC
512k Byte Flash-ROM
32k Byte RAM
Toshiba T6A04: Single-chip 64*120 pixel display driver
The new designed printed circuit boards
(PCBs) needs just 3 main Integrated Circuits:
ASIC: Z-80 microprocessor, RAM and
picture on the right gives an enhanced view of the ASIC "Inventec
that clocks the Z-80
microprocessor with 6 MHz and incorporates the 32k Byte RAM and some supporting
A component not easily detected on the printed circuit board (PCB) of the TI-83 Plus 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.
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 announced June 2002 an optional full-sized QWERTY Keyboard for a more convenient entry of notes into the handhelds.
You can check the ROM version of your TI-83
Plus using the following key sequence and reading the number on your screen:
[2nd] [MEM] 
Information provided by ticalc.org
and Xavier Andrιani.
The TI-83 Plus is permitted (as of September 27, 2007) for use on SAT, ACT, PSAT and AP exams.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, June 23, 2008. No reprints without written permission.