Texas Instruments TI-Nspire COLOR (Prototype)

Date of introduction:  Never Display technology:  LCD dot matrix
 16-bit color, backlit
New price:   Display size:  240 * 320 pixels 
Size:  7.5" x 3.4" x 0.60"
 190 x 87 x 15 mm3
Weight:  8.5 ounces, 216 grams Serial No:  
Batteries:  3.7L1060SP Li-Ion Date of manufacture:  mth 08 year 2010
AC-Adapter:   Origin of manufacture:  China
Precision:  14 Integrated circuits:  CPU: ET-TI-NS2010A (T6UJ1XBG-0001)
 SDRAM and Flash: Micron MT29C1G56MAUZAJC
 Flash-ROM: Macronix MX29SL402
Program steps:  100M Bytes, 64M Bytes Flash-ROM Courtesy of:  Texas Instruments

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.

This TI-Nspire COLOR was one of the prototypes to test the design in the field.

Dismantling this TI-Nspire COLOR prototype manufactured already in August 2010 in China reveals a very compact design based on only 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-NS2010A-0 (T6UJ1XBG-0001), obviously from Toshiba, Japan. The ARM9 core is clocked with 132 MHz compared to the 90 MHz of the previous TI-Nspire.

Please notice that the later TI-Nspire CX and CX CAS use an ASIC with the markings ET-LC2010B-0 (T6UJ1XBG-0002).

Memory: Both the NAND Flash-ROM with a capacity of 128M Bytes and the SDRAM with a capacity of 16M x 16 Bits are integrated into a Multichip Package (MCP)with the part designation Micron JW378. Using Micron's part number decoder expands the JW378 code to MT29C1G56MAUZAJC-75 and the the the MCP Part Numbering System explains:

1G: 1G Bits Flash density
56M: 256M Bits LPDRAM density
A: 1.8V Operating Voltage
U: Second generation Flash memory, 128M x 8 Bits
Z: First generation LPDRAM memory, 16M x 16 bits
A: Chip count 1 NAND Flash-ROM, 1 LPDRAM
JC: Package Code
-75: 135 MHz Clock

In addition to this impressive Multichip Package we located on the backside of the PCB an additional Macronix MX29SL402 NOR Flash-ROM with a capacity of 512k Byte. It is used for the first-stage bootloader ("Boot 1") and was integrated with the later TI-Nspire CX and CX CAS into the ASIC.


TI-Nspire COLOR (Prototype)

3.0.0 DEVBUILD (January 2011)
Boot1 Code Version: 3.0.99
Boot2 Code Version: 3.0.127

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 COLOR lacks a QWERTY keyboard it is permitted (as of May 30, 2013) for use on SAT, ACT, PSAT and AP exams.


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© Joerg Woerner, May 30, 2013. No reprints without written permission.