DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-53
| Date of introduction: | August, 1978 | Display technology: | LCD |
| New price: | DM 115.00 | Display size: | 8 (5 + 2) |
| Size: | 5.1" x 2.8" x 0.28" | ||
| Weight: | 3.0 ounces | Serial No: | 2970248 |
| Batteries: | 2*LR44 | Date of manufacture: | wk 19 year 1982 |
| AC-Adapter: | Origin of manufacture: | Italy | |
| Precision: | 11 | Integrated circuits: | TP0323 |
| Memories: | 1 | ||
| Program steps: | 32 | Courtesy of: | Joerg Woerner |
| Download manual: | 
(US: 4.142 kB) |
The
TI-53 is not really a programmabe calculator, it uses a small memory to hold up
to 32 key-codes. Due to the low-power CMOS technology of its close relative TI-50
this memory won't lost its information if you turn the calculator off.
Nevertheless this calculator could be called a classic, it was on the production
line till the year 1985.
Simply by comparing the designation of the integrated circuits of the calculators you'll get the first members of the slimline family:
 | TP0320 (CD3201) TI Investment Analyst |
| TP0320 (CD3202) TI-30-II |
| TP0321 TI-50 |
| TP0322 TI-Business Analyst-II |
| TP0323 TI-53 |
| TP0324 TI-35 |
| TP0326 TI-38 and TI-20 |
This calculator was later available in the slanted housing of the TI-55-III. View it here.
In 1984 the era of the slimline calculators was over and Texas Instruments introduced a family of three calculators manufactured in Taiwan:
| TI-30 III |
| TI-35 II |
| BA II |
Don't miss the rare Business Card, probably the missing calculator using one of the TP032x chips.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.