DATAMATH CALCULATOR MUSEUM
|Date of introduction:||1974||Display technology:||LED-stick|
|New price:||$130.00||Display size:||8|
|Size:|| 5.5" x 3.1" x 1.5"
139 x 78 x 37 mm3
|Weight:||6.9 ounces, 197 grams||Serial No:||600673|
|Batteries:||4*NiCd AA||Date of manufacture:||mth 12 year 1974|
|AC-Adapter:||Origin of manufacture:||Japan|
|Precision:||8||Integrated circuits:||Hitachi HD3650, HD3656|
|Program steps:||Courtesy of:||Joerg Woerner|
introduced already in 1974 with the
Palmtronic FC-80 a full metric conversion calculator. That time it was far ahead
of competition with both U.S. and U.K. conversion constants stored in the
memory. Dismantling the FC-80 gives immediately an answer to the obvious
How could engineers of Canon manage this unbelievable calculator ?
The printed circuit board (PCB) of the FC-80 makes use of the Hitachi HD3650 processing chip (CPU), an additional Read Only Memory (ROM) HD3656, and two display drivers. We know this powerful calculator architecture already from the Palmtronic F-7 and Canola F-11 scientific calculators.
Even the housing looks familiar to us, it was borrowed form
The FC-80 started a long tradition of metric conversion calculators but it took 8 years until we got with the Texas Instruments Converter a product with similar performance. Most other metric conversion calculators like the Canon FC-43, FC-82, Toshiba LC-838, and the TI-1889 use a tiny single-chip calculator circuit borrowed form so-called four-bangers.
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© Joerg Woerner, March 26, 2003. No reprints without written permission.