DATAMATH PICTURES

The backside of the Phoenix 1 prototype looks similar to the released TI-Nspire CAS product, but sports a strange color.	The 4 AAA-sized batteries of the Phoenix 1 prototype are accessible from the backside of the calculator.
We learned how to read the label of this Texas Instruments Phoenix 1 protoype: Engineering Validation Test, First Series, Lot B, Serial #118.
The internal construction of the Phoenix 1 makes use of just 3 printed circuit boards (PCBs), one for the gray-scale LC-Display and power supply, one for the computing unit and the keyboard.
The frontside of the PCBs reveal the construction of the 240 * 320 pixel gray-scale LC-Display, the TI-OMAP and a total of three different memory chips.
The brain of the Phoenix 1 prototype is actually a System-on-Chip based on the OMAP architecture from Texas Instruments. We assume that the tiny housing hosts a 78 MHz ARM9 32-bit RISC processor.
The Phoenix uses three different memory chips, a 256k16 NOR Flash-ROM, 32M Bytes NAND Flash-ROM, and 16M16 SDRAM. The clock frequency of the SoC is 12 MHz.
The 320 * 240 pixel gray-scale LC-Display needs a total of three drivers. We located this Novatek NT7702 row-driver and two unidentified column-drivers.