HD6413003RF Datasheet, PDF (526/715 Pages) Renesas Technology Corp – Microcontroller (MCU)

16.2.2 External Clock Input
Circuit Configuration: An external clock signal can be input as shown in the examples in
figure 16-5. In example b, the clock should be held high in standby mode.
If the XTAL pin is left open, the stray capacitance should be 10 pF.
EXTAL
XTAL
Open
a. XTAL pin left open
External clock input
EXTAL
XTAL
74HC04
External clock input
b. Complementary clock input at XTAL pin
Figure 16-5 External Clock Input (Examples)
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