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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

LC-2_PCB.jpg (60811 Byte)LC-1_PCB.jpg (59408 Byte)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.