TI-80
The TI-80 is a graphing calculator introduced by Texas Instruments in 1995 to be used at a middle school level (grades 6 to 8). It offered advanced capabilities that had previously only been available in high-end scientific calculators to students learning pre-algebra and algebra, and was designed to be affordable for schools. The oldest Texas Instruments graphing calculator is the TI-81 (released 1990), not the TI-80.
TI-80
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- Name
- TI-80
- Field
- graphing calculator
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Key facts
Key facts
• Name — TI-80 • Type — Graphing calculator • Entry — D.A.L. • Manufacturer — Texas Instruments • Introduced — 1995 • Discontinued — 1998 • Successor — TI-73 series • Processor — Proprietary (on board a Toshiba T6M53 or T6M53A ASIC) • Frequency — 980 kHz • Memory User — 7 KB of RAM • Display Size — 64×48 pixels, 16×8 characters • Precision — 13 • Supply — 2 CR2032 batteries • Weight — 106 g • Dimensions — 6.4 x
Design
Design
The TI-80 featured a 48 x 64 dot-matrix display with a 5 x 3 pixel font, the smallest screen of any TI graphing calculator. It had the slowest processor (980 kHz) of any TI graphing calculator. The first revision of the TI-80 'A' contained a proprietary Toshiba T6M53 ASIC while subsequent revisions contained a Toshiba T6M53A. Additionally, the TI-80 had the processor on board the ASIC, unlike later calculators like the TI-83, TI-83 Plus, and TI-84 Plus which had separate ASIC and processor chips in certain models. In comparison, the TI-81, released in 1990, featured a 2 MHz Zilog Z80 processor. However, the TI-80 did feature 7 KB of RAM (compared with the TI-81's 2.4 KB). The TI-80 also had more built-in functions than the TI-81 (such as list and table functions, as well as fraction and decimal conversions). Like the TI-81, the TI-80 did not feature a link port on the base model, however, unlike the TI-81, the ViewScreen variant (meant for use with TI's overhead projection units) did. The TI-80 was the only graphing calculator to use 2 CR2032 lithium batteries (instead of the standard 4 AAA batteries with a lithium backup battery).
Usage
Usage
Since its release, it was superseded by the superior TI-73 and TI-73 Explorer. The TI-80 was officially discontinued in 1998, when it was replaced by the TI-73, however, production continued until at least October 2000. As of 2021, the TI-80 remained approved for use on the SAT exam.
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Text attribution
Part of the biographical narrative on this page reuses licensed material. Its origin, revision and licence are recorded here.
The biographical narrative on this page is based on the Wikipedia article TI-80, revision 1375803816 (EN edition), by its contributors. VALÉORINE has edited that text and built its own documentary record around it. The reused material is available under CC BY-SA 4.0, and this page's reuse of it is offered under the same licence. Everything else on this page — the chronology, the holdings, the evidence, the plates and the connections — is VALÉORINE's own record. Sources and licences.
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.Owens, John E. The Day the Calculator Changed: Visual Calculators in Prealgebra and Algebra. ERIC. ED.gov (Institute of Education Sciences). October 1995.
- 2.Products. T.H.E. Journal. March 1995.
- 3.http://www.datamath.org/Graphing/TI-80.htm
- 4.McCalla, Jeff. Which TI Calculator for the SAT® and Why?. BulleTIn Board Blog. Texas Instruments. April 6, 2021.
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.
Elsewhere in Scientific instruments
736 published records in this field, each with its sources named.
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