47.6.2 Crystal Oscillator

The crystal oscillator schematic is shown below:

Figure 47-8. Crystal Oscillator Schematic

The crystal must be located as close to the device as possible. Long-signal lines may cause too high of a load to operate the crystal, and cause crosstalk to other parts of the system.

Table 47-5. Crystal Oscillator Checklist
Signal NameRecommended Pin ConnectionDescription
XINLoad capacitor. Value depends on Crystal manufacturers recommendation.(1)External crystal between 0.4 to 32 MHz
XOUTLoad capacitor. Value depends on Crystal manufacturers recommendation.(1)
Note:
  1. The capacitors must be placed close to the device for each supply pin pair in the signal group.