DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-89 Titanium ViewScreen™
| Date of introduction: | Jan.7, 2004 Available: August 2004 |
Display technology: | LCD dot matrix |
| New price: | $149.99 (SRP 2008) | Display size: | 100 * 160 pixels |
| Size: | 7.7" x 3.3" x
0.85" 195 x 84 x 22 mm3 |
||
| Weight: | 8.3 ounces, 234 grams | Serial No: | 2644000333 |
| Batteries: | 4*AAA + SR44 (35mA) | Date of manufacture: | mth 07 year 2009 (J) |
| AC-Adapter: | Origin of manufacture: | China (P) | |
| Precision: | 14 | Integrated circuits: | CPU: MC68SEC000 ASIC: TI REF 680TG0204R02 Flash: LH28F320 |
| Memories: | |||
| Program steps: | 188k Bytes, 2.7M Bytes Flash ROM | Courtesy of: | Xavier Andréani |
The
TI-89 Titanium ViewScreen Calculator (VSC) is the teacher version of the
TI-89
Titanium. It connects with a special port to a ViewScreen
panel via a cable. Placing the panel on the overhead projector enlarges the
image of the handheld screen so that each student can follow along.
The display
of the TI-89 Titanium sports 100 * 160 dots compared with the 64 * 128
dots of the TI-86 or the 64 * 96 dots of the TI-83
Plus.
As a consequence introduced Texas Instruments different ViewScreen panels.
Four ViewScreen panels were available in 2008:
| • Panel 1:
TI-73 VSC, TI-73 Explorer VSC,
TI-80
VSC,
TI-82 VSC, TI-83 VSC, TI-83 Plus VSC, TI-83 Plus Silver Edition VSC, TI-84 Plus VSC, TI-84 Plus Silver Edition VSC • Panel 2: TI-89 VSC, TI-89 Titanium VSC, TI-92, TI-92 Plus, Voyage 200 • Panel 3: TI-85 VSC (2nd design), TI-86 VSC • Panel 4: TI-Nspire, TI-Nspire CAS, TI-Nspire Touchpad, TI-Nspire CAS Touchpad |
As an alternative the TI-Presenter video adapter connects to a TV or other projection device with a video input port.
From
a technical point of view the TI-89 Titanium VSC is almost identical with the students
TI-89 Titanium. The first difference you notice is a slightly changed bottom shell of the
calculator housing to accommodate the ViewScreen connector.
Dismantling
the TI-89 Titanium VSC manufactured in July 2009 reveals a printed circuit board
(PCB) known as TI-89 Hardware Version 4 and sports just five main components:
Processor:
The processor located on the Printed Circuit Board (PCB) is the low-power
version of the Motorola MC68EC000 labeled MC68SEC000. Learn more about the Hardware Architecture of TI’s Graphing Calculators.
ASIC:
This impressive Integrated Circuit with the designation TI REF 680TG0204R02
integrates not only the glue logic of the design and USB interface but even 256k
Bytes RAM.
Memory:
This TI-89 Titanium VSC manufactured in July 2009 sports a Sharp
Flash-ROM LH28F320 with a capacity
of 2Mx16 bits.
Display
Driver: The TI-89 Titanium VSC uses two different display drivers for
the 100 * 160 pixels display.
An
additional PCB is connected with a short piece of flat-cable to the display
board. This PCB basically buffers the signals of the LC-Display and feeds them
to the external ViewScreen connector.
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. The optional full-sized QWERTY Keyboard
introduced already in 2002 matches with a new cradle even with the TI-89
Titanium VSC.
Don't miss the colorful slide cases developed for the TI-84 Plus Silver Edition, they fit on the TI-89 Titanium VSC, too.
Texas Instruments announced in 2006 the TI-Nspire, this
long-awaited calculator family arrived finally July 2007 in the store shelves.
Hardware-Versions:
The two different hardware revisions of the TI-89 Titanium VSC are
known as HW3 and HW4. You can check the HW version of your TI-89 Titanium VSC using
the following key sequence and reading the number on your screen:
