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Texas Instruments TI-89 Titanium (France)

Date of introduction:	July 2007	Display technology:	LCD dot matrix
New price:	EUR 189.90	Display size:	100 * 160 pixels
Size:	7.4" x 3.2" x 0.80"
Weight:	7.7 ounces	Serial No:	2408001249
Batteries:	4*AAA + SR44 (35mA)	Date of manufacture:	mth 07 year 2007
AC-Adapter:		Origin of manufacture:	China (S)
Precision:	14	Integrated circuits:	CPU: MC68EC000 ASIC: TI-REF680TG0204R03 Flash: LH28F320
Memories:
Program steps:	188k Bytes, 2.7M Bytes Flash-ROM	Courtesy of:	Joerg Woerner

This beautiful TI-89 Titanium with a gloss black case was introduced in France in July 2007 together with the long-awaited TI-Nspire. The late production date recalls in us the ongoing discussions between different versions of the TI-89 Titanium. The two different hardware revisions of the TI-89 Titanium are known as HW3 and HW4.

This black TI-89 Titanium is obviously a HW4 revision and hence we decided to disassemble the French beauty.

The internal construction of this late TI-89 Titanium seems to be identical with the original design manufactured already in April 2004 by the same contract manufacturer.

The only visible difference between the two designs is the revision of the ASIC. The ASIC found in original HW3 was labeled "TI-REF680TG0204R02 / T6TW3AFG-0001" (CHANGE!!!), while this HW4 ASIC reads: "TI-REF680TG0204R03 / T6TW3AFG-0003".

No obvious reason to assume major improvements of the calculator!

The two display drivers known from the predecessor are still used and attached in chip-on-board technology on the main PCB.

The TI-89 Titanium supports the ViewScreen panel and the TI-Presenter with an Presentation Link Adapter. The optional full-sized QWERTY Keyboard introduced already in 2002 matches with a new cradle even with the TI-89 Titanium.

Hardware-Versions:

The two different hardware revisions of the TI-89 Titanium are known as HW3 and HW4. You can check the HW version of your TI-89 Titanium using the following key sequence and reading the number on your screen:

[F1] [A]

ROM-Versions:

3.00 (April 2004)
3.01 (February 2005)
3.10 (July 18, 2005, actual in February 2008)

You can check the ROM version of your TI-89 Titanium using the following key sequence and reading the number on your screen:

[F1] [A]

Information provided by ticalc.org.

Exam acceptance:

Since the TI-89 Titanium lacks a QWERTY keyboard it is permitted (as of September 27, 2007) for use on SAT, PSAT and AP exams. Calculators with computer algebra system (CAS) functionality are not allowed on ACT exams.

If you have additions to the above article please email: joerg@datamath.org.