The figures below illustrate various escape pattern designs.
Figure 3-2. SAM9X7 Series Top Layer Example -
SignalFigure 3-3. SAM9X7 Series Layer 2 Example -
GroundFigure 3-4. SAM9X7 Series Layer 3 Example -
SignalFigure 3-5. SAM9X7 Series Layer 4 Example -
PowerFigure 3-6. SAM9X7 Series Layer 5 Example -
GroundFigure 3-7. SAM9X7 Series Bottom Layer Example
- Signal
The decoupling capacitors should be placed on the bottom,
as close as possible to the vias connecting the power pins of the MPU. An example of
such placement can be seen in the following figure.
Figure 3-8. SAM9X7 Series Decoupling
Capacitors Placement Example
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