user6841: If I use some IC which requires clock frequency like 16MHz, can I take one from Arduino? 
Or this it too high frequency to travel to neighboring board?

user80887: The frequency is important. Make sure they are the same or it will probably not work.

6841: <p>If I use some IC which requires clock frequency like 16MHz, can I take one from Arduino? </p>

<p>Or this it too high frequency to travel to neighboring board?</p>
 80887: <p>The frequency is important. Make sure they are the same or it will probably not work.</p>
