DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Canon F-64
| 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 |
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| 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 |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
The
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.
The
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.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, November 26, 2014. No reprints without written permission.