Instruction speed

Arduino uses a 16 MHz oscillator. Instruction clock is 16Mhz = 62.5nS per instruction.

How long do instructions take to process?

Generally instructions that operate on registers take one cycle, instructions that operate on memory take two cycles, and “special” instructions take 3 cycles. Look at the data sheet for more details

USEFUL?
We benefit hugely from resources on the web so we decided we should try and give back some of our knowledge and resources to the community by opening up many of our company’s internal notes and libraries through mini sites like this. We hope you find the site helpful.
Please feel free to comment if you can add help to this page or point out issues and solutions you have found, but please note that we do not provide support on this site. If you need help with a problem please use one of the many online forums.

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