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Texas Instruments TI-82

Date of introduction:	1996	Display technology:	LCD dot matrix
New price:		Display size:	8 * 16 characters
Size:	7.2" x 3.2" x 0.80"
Weight:	5.6 ounces	Serial No:	1893013387
Batteries:	4*AAA + CR1620	Date of manufacture:	mth 03 year 2000
AC-Adapter:		Origin of manufacture:	Taiwan (I)
Precision:	14	Integrated circuits:	Zilog Z84C0008, SRM2B256, LH531©95, Toshiba TC14L010, Toshiba T6A04A
Memories:
Program steps:	28k Bytes	Courtesy of:	Joerg Woerner

About three years after introduction of the original TI-82 it received a restyling to match with the current design line. The TI-82 offers a basic set of graphing tools for mathematics and science coursework. The TI-82 is together with the TI-83 the predecessor of the upgradeable TI-83 Plus.

From a technical point of view resembles this TI-82 manufactured in 2000 more or less the original design introduced in 1993. The printed circuit board (PCB) looks very similiar to the first design and makes use of the same components:

	Z-80 microprocessor
	Toshiba TC14L010 ASIC with glue logic
	LH531 - ROM for internal program storage
	SRM20256 - 32k Bytes S-RAM for user program and data
	Toshiba T6A04A - display driver

The glue logic of the TI-82 is integrated into a Toshiba TC14L010 ASIC, known already from the first edition of the TI-82.

A deeper exploration of the display board shows the unbelievable high density of electrical connections between the Toshiba T6A04A display controller and the graphics screen.

A serial port of the calculators allows the connection to the Calculator-Based Laboratory system CBL, its successor CBL 2 and the Calculator-Based Ranger CBR.

In 2001 another styling variation appeared, don't miss the TI-82 Parcus.

ROM-Versions:

3*
4*
7*
8.0
10.0
12.0
15.0
16.0
17.0
18.0
19.0
19.006

You can check the ROM version of your TI-82 using the following key sequence and reading the number on your screen:

[MODE] [ALPHA] [S]

Information provided by ticalc.org.

Exam acceptance:

The TI-82 is permitted (as of September 27, 2007) for use on SAT, ACT, PSAT and AP exams.

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