42.7.1 External Clock Source

Figure 42-6. External Clock Source Schematic

Table 42-3. External Clock Source Connections
Signal Name	Recommended Pin Connection	Description
XIN	Connect to an external clock signal Frequency range specified in the XOSC Electrical Specifications (XOSC_35 parameter)	Input for external clock signal
XOUT/GPIO	Can be left unconnected or used as normal GPIO	NC/GPIO

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