DATAMATH CALCULATOR MUSEUM

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) uPD7225G
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.

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