DATAMATH CALCULATOR MUSEUM
of the TI-Nspire CAS is different from the
TI-Nspire. The slider to release the keyboard is missing.
|The 4 AAA-sized
batteries of the TI-Nspire CAS are
from the backside of the calculator.
construction of the TI-Nspire CAS makes use of just 3 printed circuit boards
one for the gray-scale LC-Display and power supply, one for the computing unit and the keyboard.
|The frontside of the
PCB's reveal the construction of the 240 * 320 pixel gray-scale
LC-Display, and the ARM9 based 32-bit RISC processor.
|The brain of the
TI-Nspire CAS is actually a System-on-Chip based on the ZEVIO
architecture from LSI Logic.
We assume that the 208 pin housing hosts a 90 MHz ARM9 32-bit RISC processor.
CAS uses three
different memory chips, a 256k*16 NOR Flash-ROM, 32M Bytes
and 16M*16 SDRAM. The clock frequency of the SoC is 27 MHz.
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© Joerg Woerner, July 24, 2007. No reprints without written permission.