DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-84 Plus Pocket SE (Asia)
| Date of introduction: | January 3, 2012 | Display technology: | LCD dot matrix |
| New price: | Display size: | 8 * 16 characters | |
| Size: | 6.32" x 3.1" x 0.80" 160 x 80 x 21 mm3 |
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| Weight: | 5.1 ounces, 144 grams | Serial No: | 1023005029 |
| Batteries: | 4*AAA + SR44 (35mA) | Date of manufacture: | mth 11 year 2011 |
| AC-Adapter: | Origin of manufacture: | China (K) | |
| Precision: | 14 | Integrated circuits: | ASIC: TI REF 84PLCR/TA1 Flash: 29LV160 Display: Novatek NT7564H |
| Memories: | |||
| Program steps: | 24k Bytes, 1.5M Bytes Flash ROM | Courtesy of: | Joerg Woerner |
Texas Instruments
Asia introduced in January 2012 with this amazing TI-84 Plus Pocket SE a
graphing calculator very similar to the TI-84 Pocket.fr
sold in France since Summer 2011. And what is so amazing with the TI-84
Plus Pocket SE? Just the size, it packs the specifications of the original
TI-84 Plus Silver Edition into a much smaller footprint.
Dismantling
this TI-84 Pocket Plus SE manufactured in November 2011 by
Kinpo Electronics, Inc. reveals a
design using the components and Operating System of the recent TI-84
Plus SE on a very compact printed circuit board (PCB):
| • TI REF 84PLCR/TA1: Z80 microprocessor, RAM, USB-Port and supporting logic • Macronix 29LV160 • 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-84
Plus Pocket SE manufactured in November 2011 makes use of
one Macronix Flash ROM with 2M Bytes capacity.
The
driver circuit of the LC-Display was traditionally manufactured by Toshiba for
Texas Instruments' graphing calculators. This TI-84 Plus Pocket SE manufactured in 2011
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
November 2011)
You can check the ROM version of your TI-84
Plus Pocket SE using the following key sequence and reading the number on your screen:
