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
134 x 74 x 24 mm3
|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:||CD4515 or CD4565|
|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: firstname.lastname@example.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.