DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Canon LE-100
| Date of introduction: | 1974 | Display technology: | LED-stick |
| New price: | $119.95 | Display size: | 10 |
| Size: | 5.5" x 3.1" x
1.5" 139 x 78 x 37 mm3 |
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| Weight: | 6.7 ounces, 190 grams | Serial No: | 166995 |
| Batteries: | 4*NiCd AA or 4*AA Alkaline | Date of manufacture: | mth 06 year 1974 |
| AC-Adapter: | Origin of manufacture: | Japan | |
| Precision: | 10 | Integrated circuits: | TMS0125 |
| Memories: | Displays: | Bowmar Optostic R7H-122-11 | |
| Program steps: | Courtesy of: | Joerg Woerner |
The
Canon LE-100 was one of the few portable calculators using a precision and
LED-display of 10-digits. It was introduced together with the LE-81M.
From the technology the LE-100 is similar to the SR-10
introduced by Texas Instruments just a few months earlier but sports a
TMS0125
single-chip calculator circuit instead the original
TMS0120 chip. The remaining
components of the featured LE-100 calculator were not manufactured by TI, the
LED-modules are obviously from TI's competitor Bowmar while the display-drivers
look like discrete circuits encapsulated in small plastic blocks.
The
TMS0120 single-chip calculator circuit was derived from the TMS1802,
better known as first "calculator-on-a-chip".
Later - and cheaper - calculators in the LE-line were the LE-83, LE-84 and LE-85.
Compare it with the Bowmar 901D.
Later in 1974 Canon introduced with the LD-80 their first pocket calculator with the green VF-Display (Vacuum Fluorescent) and terminated the LE-series.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.