Educational estimates
Results are intended for learning, early design exploration, and cross-checking. They are not a substitute for device datasheets, reference manuals, protocol standards, simulation, measurement, peer review, or professional judgment.
Model limitations
General calculators omit conditions that can materially change a system: clock tolerance, interrupt latency, electrical behavior, errors and retransmissions, silicon errata, protocol variants, configuration modes, thermal limits, and manufacturing variation.
Safety-critical work
Do not rely on this site as the sole basis for medical, automotive safety, aerospace, industrial protection, mains-connected, or other safety-critical decisions. Apply the standards, analysis methods, validation, and competent review required for your field.
Your responsibility
Check entered units and assumptions, independently reproduce important results, and test the implemented system under normal, boundary, and fault conditions.