Canon card quartz LC-64T

Date of introduction:  1983 Display technology:  LCD
New price:   Display size:  8
Size:  3.7" x 2.2" x 0.15"  
Weight:  1.5 ounces Serial No:  
Batteries:  CR2025 Date of manufacture:  mth 12 year 1983
AC-Adapter:   Origin of manufacture:  Japan
Precision:  8  Integrated circuits:  Toshiba T6798S
Memories:  1+1    
Program steps:   Courtesy of:  Joerg Woerner

LC-64T_PCB.jpg (42110 Byte)This Canon card quartz LC-64T followed the LC-61T and added once again useful features into a credit card sized housing. The specification of the calculator include now:

8-digit calculator including full memory
Clock with alarm time and buzzer
Calendar with Day of Week function
Stopwatch with intermediate results
Conversion capability (multiplies with and divides by a constant)

The Calendar includes a readout of the "Day of Week" in the upper part of the LC-Display. The conversion capability could be used for either tax calculation, currency conversion and even time conversions by simply writing the conversion constant into the dedicated "S-memory" and performing both multiplications and division with a single keystroke. 

Please notice that Texas Instruments used the same Toshiba T6798S single-chip calculator circuit with their TI-1788 III and added one extra [WT] key to view the World Time.

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If you have additions to the above article please email:

Joerg Woerner, October 11, 2003. No reprints without written permission.