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Designing Embedded Systems with PIC Microcontrollers, 2nd Edition by Tim Wilmshurst

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CHAPTER 21. Moving beyond 8-bit
a survey of larger PIC microcontrollers
For many years Microchip Technology was the pillar of the 8-bit embedded world. While all other microcontroller manufacturers were moving up to 16- or 32-bit, Microchip made a virtue of staying loyal to the smaller size. They explored the minimalist microcontroller in the 10 and 12 Series, and developed something fast and sophisticated in the 18 Series.
But 8-bit is, well, just 8-bit, and once you get past single-bit variables like switches or LEDs, or low precision numbers or simple calculations, then you do feel the need for more bits. So Microchip took the plunge, with truly impressive speed offering us both 16- and 32-bit microcontrollers, and entered the world of ...

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