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Toshiba LC-853WA

Date of introduction:  1979 Display technology:  LCD 
New price:   Display size:  8
Size:  2.3" x 3.7" x 0.20"
 59 x 93 x 5 mm3		    
Weight:  1.6 ounces, 44 grams Serial No:  K235379
Batteries:  2*LR54 Date of manufacture:  year 1978 mth 12
AC-Adapter:   Origin of manufacture:  Japan
Precision:  8 Integrated circuits:  Toshiba T3566
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

Toshiba introduced in 1979 with the LC-853WA a tiny combination of a basic calculator and a clock with alarm-time. It seems to be the successor of the Toshiba LC-834WA.

Dismantling the LC-853WA reveals a conventional construction with a Toshiba T3566 integrated circuit soldered on a flexible printed circuit board (PCB).

We know the T3566 from the Texas Instruments TI-1790 introduced in 1978.

The LC-853WA was soon replaced with the LC-859WA sporting a traditional (portrait) housing.

Don't miss the LC-840WA introducing a full calendar function in a small calculator housing and the similar LC-854WA.

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If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, June 23, 2014. No reprints without written permission.