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A teardown wouldn't be too interesting; it looks like the calculator is basically just one chip inside: http://www.datamath.org/BASIC/LCD_Modern/JPEG_TI-108.htm
by kens 10y ago
A teardown wouldn't be too interesting; it looks like the calculator is basically just one chip inside:
http://www.datamath.org/BASIC/LCD_Modern/JPEG_TI-108.htm http://www.datamath.org/BASIC/LCD_Modern/JPEG_TI-108.htm
Of course, it might be interesting to look inside the chip...
- nickpsecurity 10y agoNow you're thinking what I'm thinking. :) Although, I was interested in the PCB, too, since I figured it might be extra simple. That's a way to reduce cost and improve reliability vs overcomplicated components used in many modern designs. Really, really simple indeed.
- kalleboo 10y agoEven a modern "advanced" calculator like this 2-line model[^] is just a blob chip and keypad matrix. Calculators are all extremely simple until you get to the graphing ones that have external RAM or even flash memory. [^] http://datamath.org/Sci/Modern/JPEG_TI-30X-IIS_SWH2016.htm http://datamath.org/Sci/Modern/JPEG_TI-30X-IIS_SWH2016.htm