Texas Instruments TI-1100

Date of introduction:  1983 Display technology:  LCD
New price:   Display size:  8
Size:  4.4" x 2.6" x 0.40"
 113 x 65 x 10 mm3
Weight:  1.9 ounces, 53 grams Serial No:  0658859
Batteries:  LR43 Date of manufacture:  mth 02 year 1984
AC-Adapter:   Origin of manufacture:  Taiwan (I)
Precision:  8 Integrated circuits:  Toshiba T6717AS
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

The TI-1100 is very similar to the TI-1706 but uses a single battery instead the solar cells. The design was unique and replaced soon with the TI-1100 II.

Dismantling this TI-1100 manufactured in February 1984 by Inventec Corporation in Taiwan reveals a clean design centered around a Toshiba T6717AS single-chip calculator circuit soldered on a single-sided printed circuit board (PCB) and powered by a LR43 battery. Please notice that the original design of the TI-1100 II used a single-sided PCB too, while later designs switched to a double-sided PCB.

Not only the calculator brain was developed by Toshiba, the roots of the TI-1100 itself trace back to the Toshiba HB-102.

Inspecting the PCB of this TI-1100 calculator brought our attention to a small mark reading I1100-01H and we started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.

Compare some other TI calculators with their siblings manufactured by Toshiba.


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If you have additions to the above article please email:

Joerg Woerner, September 27, 2002. No reprints without written permission.