4 ms·
When such things become a concern and when not? Should I be concerned about specific layout of traces and their parasitic properties if I'm going to just interf
by ungzd 8y ago
When such things become a concern and when not? Should I be concerned about specific layout of traces and their parasitic properties if I'm going to just interface low-speed digital components with microcontroller? I heard about people building whole 80's era computers on breadboards with lots of long jumper wires, and even that seem to work.
- krapht 8y agoThe very general rule of thumb is anything greater than 10 MHz switching frequency. To get an accurate answer requires physical stimulation, or "build it and see if it works or not".
- setquk 8y agoI could generalise it as anything with fast rise times. A 74lvc14 can kick out a 400ps edge even if you clock it at 1Hz for example. That's got quite some harmonic energy. Also it's usually the really slow stuff I have that oscillates madly :(