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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
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.