DATAMATH  CALCULATOR  MUSEUM

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
Memories:      
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:

29C: NAND Flash-ROM + LPDRAM
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.


ROM-Versions:

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.

 

horizontal rule

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

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