Electronics > Microcontrollers

Worst "in production" microcontrollers

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benSTmax:
Nowadays, with all the shortage, we're sometimes forced to redesign due to unavailability of the original micro.

The choice is to use some alternate micro from the same manufacturer(as the original) or from a different silicon vendor because one can still buy maybe a few hundreds of them.
Some of the available micros(available in hundreds of pcs) have some really nasty silicon bugs, though they're still being manufactured.

Which are some of the worst (I mean serious bugs without real workarounds) microcontrollers you all encountered in the past 10 years or so and still in production?

brucehoult:
Oh, you're talking about bugs.

PIC has to be the worst, by design, atrocity that is still in production. Let's include Padauk in that. Even 8051 is a lot better.

nctnico:
Add ST's STR700 series microcontrollers to the list. A complete joke.

DavidAlfa:
Pic32 were a mess, specially the MZ series.
But stm32 have serious bugs too!
8/16bit pics weren't too bad, some weird peripheral sh** from time to time, in the end we just disabled/enabled the peripherals after a transfer was done instead fighting/figuring out the bugs.

uer166:

--- Quote from: DavidAlfa on July 30, 2022, 02:53:25 am ---Pic32 were a mess, specially the MZ series.

--- End quote ---

This might be a case-by-case basis. I've had pleasant experiences with the MX series, and some things were done better than your run-of-the-mill STM32. Can't speak for MZ though, except hearing about a lot of bugs in the early revisions.

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