DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-83 Plus.fr
| Date of introduction: | June 2013 | Display technology: | LCD dot matrix |
| New price: | Display size: | 8 * 16 characters | |
| Size: | 7.5" x 3.3" x
0.85" 190 x 84 x 22 mm3 |
||
| Weight: | 7.4 ounces, 208 grams | Serial No: | 1014027440 |
| Batteries: | 4*AAA + SR44 (35mA) | Date of manufacture: | mth 03 year 2013 |
| AC-Adapter: | Origin of manufacture: | China (K) | |
| Precision: | 14 | Integrated circuits: | ASIC: TI REF 84PLCR/TA1 Flash: MX29LV160 Display: Novatek NT7564H |
| Memories: | |||
| Program steps: | 24k Bytes, 1.5M Bytes Flash ROM | Courtesy of: | Xavier Andréani |
Texas
Instruments introduced in 2013 the successor of the original TI-83
Plus.fr introduced already in 2008. The new design makes use of the housing
of the
TI-84 Plus Silver Edition with its
snap-on faceplates. We know a similar story
with the TI-73 Explorer introduced in 2006
and its successor TI-73 Explorer from
2009.
Compared with the original TI-83
Plus.fr introduced already in 2008 sports this design the housing of the
TI-84 Plus Silver Edition with its
snap-on faceplates. We know a similar story
with the TI-73 Explorer introduced in 2006
and its successor TI-73 Explorer from
2009.
Dismantling
this TI-83 Plus.fr manufactured in March 2013 by
Kinpo Electronics, Inc. reveals a
major surprise using not only the design but even the components and Operating System of the
TI-84 Plus Silver Edition. Please remember that the Prototypes of the
TI-83
Plus.fr were based on the recent TI-84
Plus. We located on the printed circuit board (PCB) of the TI-83 Plus.fr
three main components:
| • TI REF 84PLCR/TA1: Z80 microprocessor, RAM, USB-Port and supporting logic • Macronix MX29LV160: 2M Bytes Flash ROM • Novatek NT7564H: Single-chip 64*120 pixel display driver |
The
picture on the right gives an enhanced view of the ASIC that clocks the Z80
microprocessor with 15 MHz and incorporates the RAM, USB-Port and logic. Learn more about the Hardware Architecture of TI’s Graphing Calculators. Please
notice the smaller package of the new TI REF 84PLCR/TA1 ASIC compared with the
previous TI REF 83PLUSB/TA2 or TI REF 84PLUSB/TA3 found in the TI-84 Plus family
manufactured between 2004 and 2007.
Recently members of the Graphing Calculator Programming community under the lead
of Xavier Andréani made a very interesting discovery:
| • All TI-84 Plus / S.E. with the TA2 or TA3 ASIC have access
to 128k Bytes RAM. • All TI-84 Plus / S.E. with the TA1 ASIC have access to only 48k Bytes RAM using the same assembly commands. |
This
TI-83 Plus.fr manufactured in March 2013 makes use of
one Macronix Flash-ROM with 2M Bytes capacity compared to just 1M Bytes of the
TI-83 Plus.fr prototypes.
The
driver circuit of the LC-Display was traditionally manufactured by Toshiba for
Texas Instruments' graphing calculators. This
TI-83 Plus.fr manufactured in
March 2013
shows with the Novatek NT7564H
a one-by-one replacement. It is just a bare 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.
ROM-Versions:
2.55MP (January 11, 2011, actual in
August 2013)
You can check the ROM version of your TI-83 Plus.fr using the following key sequence and reading the number on your screen:
