DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-1795+
| Date of introduction: | 1992 | Display technology: | LCD |
| New price: | Display size: | 8 | |
| Size: | 4.9" x 4.2" x 1.0" 125 x 106 x 25 mm3 |
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| Weight: | 3.0 ounces, 84 grams | Serial No: | |
| Batteries: | n.a. | Date of manufacture: | mth 03 year 1994 (D) |
| AC-Adapter: | Origin of manufacture: | Thailand (C) | |
| Precision: | 8 | Integrated circuits: | Sharp LI3154 |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
Is
this TI-1795+ a small desktop calculator or a large handheld calculator? The
type designator suggests the "Desktop Category" of the Datamath
Calculator Museum, from the size it could easily a "Handheld"
like the TI-508
PLUS.
Beside the smooth styling the calculator itself is very plain and looks still like the first TI-1795 introduced already in 1984.
Dismantling
this TI-1795+ manufactured in March 1994 by Compal
Electronics in Thailand reveals a very simple construction centered
around a Sharp LI3154 single-chip calculator circuit. Please compare it
with the TI-7350 manufactured in China.
The
LI3154 makes use of a standard flat-pack housing, a very uncommon approach mid
of the 90s. Most calculators of this era use "Chip-on-Board"
technology, instead.
Within four years the design of the TI-1795+ was changed slightly.
Don't miss the later TI-1795+.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, May 2, 2003. No reprints without written permission.