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Texas Instruments TI-Nspire CX EZ-Spot (Second Version)

Date of introduction:  February 25, 2011
 Available: September 2011
Display technology:  LCD dot matrix
 16-bit color, backlit
New price:  $154.99 (SRP 2011) 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:  2449033222
Batteries:  3.7L1060SP Li-Ion Date of manufacture:  mth 12 year 2014 (T)
AC-Adapter:  AC9211U Origin of manufacture:  China (P)
Precision:  14 Integrated circuits:  CPU: ET-LC2010B-0 (T6UJ1XBG-0002)
 SDRAM and Flash: Elite FM60D1G12A
Memories:      
Program steps:  100M Bytes, 64M Bytes Flash-ROM Courtesy of:  Joerg Woerner

To reduce theft of this new school-owned TI-Nspire CX calculator, Texas Instruments introduced on February 25, 2011 the TI-Nspire CX EZ-Spot Teacher Packs with a bright, easy-to-spot, "school bus yellow" design.

Texas Instruments changed in Fall 2014 the internal construction of the TI-Nspire CX calculators and we noticed Li-ion batteries with a larger capacity of 1,200 mAh compared to the original 1,060 mAh specification. The batteries are interchangeable with the TI-84 Plus CE.

Dismantling this TI-Nspire CX EZ-Spot manufactured in December 2014 by Inventec Corporation in its Pudong Campus in Shanghai, China reveals a very compact design based on just two printed circuit boards (PCB's) with just a few main Integrated Circuits.

Processor: The ARM9 CPU is integrated into an ASIC with the markings ET-LC2010B-0 (T6UJ1XBG-0002), obviously from Toshiba, Japan. The ARM9 core is clocked with 132 MHz compared to the 90 MHz of the previous TI-Nspire.

Memory: Both the NAND Flash-ROM and the SDRAM  are integrated into a Multichip Package with the part designation ESMT (Elite Semiconductor Memory Technology Inc., Taiwan) FM60D1G12A-6BE. Deciphering the part number reveals the capacity of the Flash-ROM (128 MByte) and SDRAM (64 MByte):

Product Family 60 NAND(x8) + Mobile SDRAM(x16)
Operating Voltage D = 1.8V NAND, 1.8V DRAM
Flash Density 1G = 1 Gbit NAND Flash-ROM
RAM Density 12 = 512 Mbit SDRAM
Major Version A
RAM Speed 6 = 166MHz
Package Code B = BGA107
Working Temperature E = -25°C to 85°C



ROM-Versions:

TI-Nspire CX EZ-Spot

4.5.0.1180 (July 27, 2017)
Boot2 Code Version: 4.4.0.8


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

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

Information provided by Xavier Andréani.

 
Exam acceptance:

Since the TI-Nspire CX EZ-Spot 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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If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, June 25, 2019. No reprints without written permission.