Architectural Data Corp Data Dimensioner ®

Date of introduction:  1984 Display technology:  LCD Alphanumeric
New price:   Display size:  12 + 8
Size:  6.4" x 3.2" x 1.5"
 162 x 81 x 37 mm3
Weight:  8.7 ounces, 247 grams Serial No:  
Batteries:  3*NiCd AA Date of manufacture:  wk 08 year 1985
AC-Adapter:   Origin of manufacture:  USA
Precision:   Integrated circuits:  TI ADC1984C (TMC70C20 C11202)
Memories:  6    
Program steps:   Courtesy of:  Joerg Woerner

Architectural Data Corp introduced in 1984 with the Data Dimensioner ® an innovative product to calculate with mixed dimensions such as feet, inches, fractions and convert them to their metric or decimal equivalents.

We know a lot of customized products for various applications based on the TI-58 with its unique Solid State Software Modules storing up to 5000 program steps, but the Data Dimensioner goes even a step further. Architectural Data Corp replaced the complete electronics of the TI-58C calculator and swapped the power hungry LED-Display with a then state-of-the-art LC-Display with two lines and alphanumerical font.

Dismantling this Data Dimensioner manufactured early in 1985 reveals a printed circuit board (PCB) with roughly the size of a standard TI-58C calculator but only two integrated circuits and a few discrete components.

Main components on the PCB are a Texas Instruments TMS70C20 single-chip microcontroller with the markings ADC1984C and C11202NL supported by a standard LCD driver NEC uPD7225G.

Architectural Data Corp

Architectural Data Corporation of Louisville, KY is listed as of November 2014 as a manufacturing company for "Electronic, Electrical Equipment & Components, Except Computer Equipment Companies".

Data Dimensioner is a trademark of Architectural Data Corporation.

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Joerg Woerner, November 27, 2014. No reprints without written permission.