[sdiy] 8 bit MCUs, why bother? (branch off "LFSR digital noise source")

Ben Stuyts ben at stuyts.nl
Thu Nov 14 22:32:33 CET 2019

> On 14 Nov 2019, at 22:06, sleepy_dog at gmx.de wrote:
> Tom Wiltshire wrote:
>>> (yes, I am also playing with analog synth chips and such, and even vacuum tubes, out of a special fondness - that doesn't mean I want to use obsolete stuff for every aspect of what I do ;))
> [...]
>> Far from being obsolete, there are about a zillion applications, but they’re often so small as to be overlooked. I think you’re just thinking on the wrong scale. Think of all the tiny, simple stuff, not the things that *you’d* program.
> Could be.
> I was looking the other day for cheap 8bit PIC prices on RS components, and the cheapest 8pin STM32G0 was cheaper at ~ the same qty.
> But that was a quick glance, not very thourough, I could have overlooked cheaper ones far less capable.
> So that would then look to me like, maybe an "obsolete choice" for an ever wider area of applications, or, conversely, the best choice for a shrinking area of applications (due to better specs for same price of the simpler 32bit ones, including specs of internal peripherals - where the application requires or benefits from it).
> How's that?

How’s $0.03 for a microcontroller? :) https://www.youtube.com/watch?v=VYhAGnsnO7w <https://www.youtube.com/watch?v=VYhAGnsnO7w>
Die shot: https://www.youtube.com/watch?v=5jw5D0F008c <https://www.youtube.com/watch?v=5jw5D0F008c>

By the way, lcsc.com <http://lcsc.com/> where this mcu came from is a really interesting distributer, part of the same company als jlcpcb.com <http://jlcpcb.com/> (pcb manufacturer). Lots of cheap Chinese parts, but also e.g. ST microcontrollers for better prices than e.g. Farnell or Digikey. I’ve used some of them in production, no complaints yet.


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