DATAMATH CALCULATOR MUSEUM
|Changing the 4 AAA-sized
batteries of the TI-Nspire EZ-Spot
with Touchpad needs the keyboard to be removed.
of the TI-Nspire EZ-Spot with Touchpad features
a cover to access the optional, rechargeable battery.
construction of the TI-Nspire 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 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.
|The TI-Nspire uses
two different memory chips, a 32M Bytes
and 16M*16 SDRAM. The clock frequency of the SoC is 27 MHz.
|The TI-Nspire makes use of three highly integrated display drivers.
One Novatek NT7702
for the 240 rows (top) and two unidentified chips (bottom) for 160 columns, each.
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© Joerg Woerner, January 9, 2011. No reprints without written permission.