I'm laying out a PCB for a PIC 16F877 project, and I'm wondering about the
minimum trace widths to use for the power and ground traces. The standard
width used for all the traces (so far) is 10 mils. And life is easier,
layoutwise, if I can use 10 mil for the power and ground traces as well.
The current consumption as around 35 mA, and the board is 5" by 2.5 ",
double sided. I'm using some analog circuitry, but it has it's own ground
which is tied to the power ground at one point close to the regulator. The
analog 5V is decoupled from the digital 5V.

I'm new to this layout stuff. Can any of you experts out there tell me if I
can use a 10 mil trace, or should I use something larger?

Thanks

Larry Bradley
Orleans (Ottawa), Ontario, CANADA

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