DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
Canon LC-2 a.k.a Palmtronic LC
| Date of introduction: | January 1977 | Display technology: | LCD (yellow) |
| New price: | Display size: | 8 | |
| Size: | 4.5" x 2.6" x
0.45" 113 x 65 x 11 mm3 |
||
| Weight: | 2.4 ounces, 68 grams | Serial No: | 511365 |
| Batteries: | 3*LR44 or PACK-3 | Date of manufacture: | mth 12 year 1976 |
| AC-Adapter: | AD3 | Origin of manufacture: | Japan |
| Precision: | 8 | Integrated circuits: | NEC uPD877G |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
Canon
entered with the Palmtronic LC already in 1976 the market of LCD calculators and
was about 6 month ahead the first Texas Instruments TI-1750.
Compared
with the original design using a huge calculator chip in a
42-pin plastic housing from Hitachi this LC-2 looks inside more common. Other
changes were the simpler connection between the LC-display with the printed
circuit board (PCB) and avoiding the expensive DC/DC-converter to supply the
calculator electronics. The LC-3 introduced just a few
month later uses an identical PCB but hosts a different calculator chip.
In a later redesign the LC-display was changed from the yellow polarization foil
to the usual grey type. Don't miss the second LC-1, LC-3,
LC-4,
LC-5,
LC-6
and
a later LS-6. Don't miss the Olympia
HIT 2000 sporting the NEC uPD877G
single-chip calculator circuit, too.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 20, 2003. No reprints without written permission.