Texas Instruments TI-Nspire CX

Date of introduction:  February 25, 2011
 Available: May 2011
Display technology:  LCD dot matrix
 16-bit color, backlit
New price:  $154.99 (SRP 2011)
 $165.00 (SRP 2013)
Display size:  240 * 320 pixels 
Size:  7.5" x 3.4" x 0.65"
 190 x 87 x 16 mm3
Weight:  8.5 ounces, 242 grams Serial No:  2088012637 
Batteries:  3.7L1230SP Li-Ion Date of manufacture:  mth 08 year 2011 (C)
AC-Adapter:  AC9211U Origin of manufacture:  China (P)
Precision:  14 Integrated circuits:  CPU: ET-LC2010B-0 (T6UJ1XBG-0002)
Program steps:  100M Bytes, 64M Bytes Flash-ROM Courtesy of:  Joerg Woerner

Texas Instruments introduced at the 2011 T3 International Conference held on February 25-27 in San Antonio, TX with the TI-Nspire CX and TI-Nspire CX CAS their first graphing calculators with full color, backlit displays. Since its introduction in 2007 the original TI-Nspire with Clickpad received quite some criticism and it took just two steps in evolution to overcome them completely:

Step 1:
Crowded, confusing keyboard: Introduction of the TI-Nspire with Touchpad in April 2010.
High consumption of disposable AAA batteries: Rechargeable Li-Ion battery available as
    option for the TI-Nspire with Touchpad.

Step 2:

Low-contrast of the display and rather bulky housing: Announcement of the TI-Nspire CX in February 2011.
Lack of 3D graphing: Upgrade of all TI-Nspire calculators to Operating System 3.0 (April 2011).

But there is no free lunch, the new TI-Nspire CX handhelds shed some size and reveals an outstanding design but the concept of replaceable keyboards are gone – and with it the TI-84 Plus compatibility.

The TI-Nspire CX and its sibling TI-Nspire CX CAS feature a 16-bit, 320 x 240 backlit display capable of 65,536 colors. The scanning process used for the images provided by the Datamath Calculator Museum can’t reproduce the one-of-a-kind quality of the calculator screen and we had to invest in some new equipment to photograph it accordingly.

Casio introduced already in October 1985 with the fx-7000G the world’s first graphing calculator and created in 1996 with the CFX-9850G a variation with a 3-color screen, but it took till January 2011 to reveal with the Casio Prizm (fx-CG10, fx-CG20) the first models with a high-resolution (384 x 216 pixels) full color display.

Texas Instruments announced together with the TI-Nspire CX family a new Wireless Network Adapter to connect the calculators with the TI-Nspire Navigator system. A huge progress compared with the previous TI-Nspire Wireless Cradle used for the original TI-Nspire calculators.

The TI-Nspire CX Docking Station charges up to 10 units in 6 hours. It can also be used to update the Operating Systems of the calculators.

The new TI-Nspire Operating System 3.0 allows not only 3D graphing but the import of real-world images to view, graph and analyze for example the outline of the path of a basketball. The new OS is compatible with the original TI-Nspire calculators, too. Obviously it will display color images only in grayscale. The new TI-Nspire Lab Cradle requires the new Operating System 3.0 (introduced in May 2011) or higher.

To reduce theft of school-owned TI-Nspire CX's a "school bus yellow" edition will be available.


TI-Nspire CX (May 2011)
Boot1 Code Version: 3.0.99
Boot2 Code Version: 3.0.127 (September 2011) (June 2012) (June 2012) (December 2012)


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

[HOME] [5] [4] (3.0)

Exam acceptance:

Since the TI-Nspire CX lacks a QWERTY keyboard it is permitted (as of March 10, 2011) for use on SAT, ACT, PSAT and AP exams.


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© Joerg Woerner, May 31, 2013. No reprints without written permission.