u r proposed to refer to 3W rule. : P' X5 I6 z6 M# {! A! ]; j0 kwhen clock trace is 5 mils, u will need 10 mils spacing. ( A& A9 E3 N- Q$ u. d: p5 iof course GND trace will help, but PTH through holes with proper interval will do it better.! m! `7 T! K) |$ m* {6 w
- F) g& x- A: k3 d. I" j n% J( |& Sgoogle it for detailed information, please!