DATAMATH CALCULATOR MUSEUM
|Date of introduction:||June 1981||Display technology:||LCD|
|New price:||Display size:||8 (5 + 2)|
|Size:|| 6.1" x 3.0" x 0.80"
154 x 75 x 20 mm3
|Weight:||3.1 ounces, 87 grams||Serial No:||5181504|
|Batteries:||2*AA||Date of manufacture:||year 1981|
|AC-Adapter:||Origin of manufacture:||Japan|
|Precision:||11||Integrated circuits:||NEC uPD1856G|
|Program steps:||Courtesy of:||Joerg Woerner|
Canon F-64 Scientific Statistical Calculator is together with its sibling
F-56 one of the few Canon products based on NEC
single-chip calculator circuits. One of the odd behaviors of the NEC uPD1856G
circuit is the left to right entry method.
Running the Calculator Forensics on the F-56 reveals with 9.0001495952 an impressive result compared to similar calculators of the early 80's. On the other hand supports the chip no rounding of the display results.
internal construction of the F-64 is pretty simple and uses only a few
components on a single-sided printed circuit board (PCB).
Please notice the odd package of the NEC uPD1856G single-chip calculator circuit.
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© Joerg Woerner, November 26, 2014. No reprints without written permission.