3 ms·
What's a good knee-jerk "use this" recommendation that's inexpensive and likely to exist for a long time? Popularity and/or intuitivity would be nice bonuses,
by exikyut 5y ago
What's a good knee-jerk "use this" recommendation that's inexpensive and likely to exist for a long time?
Popularity and/or intuitivity would be nice bonuses, but I'd value functionally correct/sane behavior more highly.
(I'm guessing this question belies my extreme ignorance of the field :), and that the RTCs in even eg basic Arduino etc designs are probably already reasonably decent.)
Edit: Just noticed the parent sibling comment about RTCs obviating divide/multiply logic. Much clicks into place now.
- marcan_42 5y agoYou don't buy RTCs. You buy a big SoC with a 5000 page datasheet, of which 3-10 pages are the RTC, and you take what they give you. There is no room for the RTC type/design to be part of the part selection process for a SoC, which is why they can be vaguely crappy and nobody cares or can do anything about it. Edit: it's a power management IC for a SoC, not the SoC itself, but you often don't get much choice of those either since SoCs tend to be designed to pair with a specific PMIC. Whether the RTC is in the SoC or PMIC (or both) depends on the design.