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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:  CD4515 or CD4565
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

TI-30LCD_Side.jpg (16607 Byte)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. TI-30LCD_IC1.jpg (30718 Byte)
In Italy around the same time the calculator chip was called CD3202-4. TI-30LCD_IC5.jpg (38020 Byte)
Later TI-30 LCD (this one is wk 41 year 1981) use the same chip in a smaller housing. TI-30LCD_IC4.jpg (59456 Byte)
In Brazil the CD3202-4 survived thanks to local production of the chips. SR-40-LCD_PCB.jpg (32952 Byte)
Few models manufactured in the first weeks of the year 1982 got the new TP0455 design. TI-30LCD_IC2.jpg (32007 Byte)
Most common in the TI-30 LCD is the corrected TP0456 design. TI-30LCD_IC3.jpg (30170 Byte)
Another design with the TP0456 in the large housing and an additional X-TAL in the LOGpit. Logpit_IC.jpg (38536 Byte)

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.

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

Joerg Woerner, December 5, 2001. No reprints without written permission.