DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-89 (European edition)
| Date of introduction: | May 2003 | Display technology: | LCD dot matrix |
| New price: | Display size: | 100 * 160 pixels | |
| Size: | 7.2" x 3.2" x 0.80" 182 x 81 x 20 mm3 |
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| Weight: | 6.4 ounces, 182 grams | Serial No: | 2181006537 |
| Batteries: | 4*AAA + CR1620 (35mA) | Date of manufacture: | mth 06 year 2003 (F) |
| AC-Adapter: | Origin of manufacture: | China (S) | |
| Precision: | 14 | Integrated circuits: | CPU: MC68EC000 ASIC: TI REF 200C040 Flash: LH28F160 RAM: 2*TC551001 |
| Memories: | |||
| Program steps: | 188k Bytes, 702k Bytes Flash ROM | Courtesy of: | Joerg Woerner |
The
TI-89 introduced in the 1998 could be called the most enhanced calculator
of the pre-2000 time.
In Europe in 2003 a new styling with a dark blue case appeared
to make it more attractive for the students.
Other cosmetic changes include a
new color scheme of the keyboard and a silver frame around the display.
In May 2003 the new operating system 2.09 was introduced to make the TI-89 more
user friendly. It included:
| Icon desktop for easy navigation to the applications Real time clock with date Pre-loaded applications CellSheet to enhance the TI-89 with spread sheet capabilities Statistics with list editor to enhance the statistics functions of the TI-89 Language localizers for French & German New multi curricular functions TI Reader to read .txt, .htm and OEB formats Datamate Better integration with Cabri II Plus Better integration with Derive6" |
Dismantling
this TI-89 manufactured in June 2003 reveals no surprises, it is based on the TI-89 Hardware Version
2.00 known since 2000. It makes use of just 5 main components on the printed circuit
boards (PCBs):
CPU
(Central processing Unit): The
Motorola MC68EC000
- the original M68000 16/32-bit microprocessor introduced in 1979 - optimized
for embedded applications is supported by the ASIC TI REF 200C040 and replaces the customized SC414181
solution of the TI-89 Hardware Version 1.00. Learn more about the Hardware Architecture of TIs Graphing Calculators.
ROM (Read Only Memory): The ROM contains the operating
system of the calculator. The first products on the market used
mask-programmable ROM, the program was stored already during the production
of the Integrated Circuit. Later calculators changed to Flash ROM, a
technology allowing the programming of the software during the final production
stage of the calculator. With the TI-83 Plus and all later graphing calculators
from Texas Instruments even the user was able to reprogram the operating system.
The
Flash-ROM chip LH28F160
of this TI-89 was manufactured by Sharp, Japan. The capacity of the memory is
1Mx16 bits, or the equivalent of 2M Bytes.
RAM
(Random Access Memory): The RAM is used as data memory and is used to store both
variables, user programs and intermediate results. This TI-89 makes use of two
Static RAM chips TC551001 manufactured by Toshiba, Japan. The capacity of the memory
chips is
128k Bytes, each.
DISPLAY:
A
deeper exploration of the TI-89 display drivers shows the unbelievable high density of
electrical connections between the two display controllers manufactured by Sharp,
Japan and the
graphics screen.
The clock and the icon desktop were new features included in the OS 2.07 and
upwards. You can easily update an elder TI-89 to OS 2.08 or OS 2.09 so that it will include the clock as well.
However the clock will not activate with a TI-89 Hardware Version 1.00, it has to be
Hardware Version 2.00.
Texas Instruments announced January 7, 2004 with the TI-89
Titanium the successor of the TI-89. Main differences are:
| More stylish housing with integrated kickstand Integrated USB port for computer connecitivity Three times of user memory Advanced display 16 pre-loaded software applications |
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.
Don't miss the colorful slide cases developed for the TI-83 Plus, they fit on the TI-89, too.
Hardware-Versions:
The two different hardware revisions of the TI-89 are known as
HW1 and HW2. You can check the HW version of your TI-89 using the following key
sequence and reading the number on your screen:
[F1] [A]
Please notice that HW1 revisions report just the ROM version while HW2 reports the hardware revision, too. Main differences between HW1 and HW2 are the display access (Direct Memory Access vs. Memory Mapped IO), processor speed (10 MHz vs. 12 MHz) and limitations of the assembly program size).
ROM-Versions:
2.08 (July 29, 2002, recalled and re-released February 20, 2003)
2.09 (May 20, 2003, actual in February 2008)
Advanced Mathematics Software v2.09
You can check the ROM version of your TI-89 using the
following key sequence and reading the number on your screen:
