DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-30 LCD
Date of introduction: | 1982 | Display technology: | LCD |
New price: | Display size: | 8 (5 + 2) | |
Size: | 5.3" x 2.9" x
0.95" 134 x 74 x 24 mm3 |
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Weight: | 3.6 ounces, 101 grams | Serial No: | |
Batteries: | 2*AA | Date of manufacture: | wk 40 year 1982 |
AC-Adapter: | Origin of manufacture: | Italy | |
Precision: | 11 | Integrated circuits: | TP0455/CD4515 or TP0465/CD4565N or CD4565N2 |
Memories: | 1 | ||
Program steps: | Courtesy of: | Joerg Woerner |
The TI-30 LCD is actually only one half of a slimline calculator. The flat bottom of the case shell was exchanged with a stepped one that accommodates 2 huge AA-cells. This modification was done for the European market, you'll locate the same bottom shell on the TI-2001 GTI or the TI-1032.
The electronics of this calculator is identical to the TI-30-II sold as a real slimline calculator elsewhere. In the same year a desktop variant of the TI-30 appeared, don't miss the rare TI-30 D.
The first version of the TI-30 LCD uses a slightly different electronic inside, it could be recognized at the x!-key instead the later n!-key. View the predecessor here.
The TI-30 LCD is one of the rare calculators that received a "major upgrade" in the electronics during production time. Read more about the different calculator chips produced by Texas Instruments in the IC-List.
The first production lot introduced in the year 1980 used a TP0320 calculator chip. | |
In Italy around the same time the calculator chip was called CD3202-4. | |
Later TI-30 LCD (this one is wk 41 year 1981) use the same chip in a smaller housing. | |
In Brazil the CD3202-4 survived thanks to local production of the chips. | |
Few models manufactured in the first weeks of the year 1982 got the new TP0455 design. | |
Most common in the TI-30 LCD is the corrected TP0456 design. | |
Another design with the TP0456 in the large housing and an additional X-TAL in the LOGpit. |
The calculator was available till the year 1985. In Brazil a
similiar calculator was manufactured under license of Texas Instruments, don't
miss the SR-40 LCD.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.