HD6433802H Datasheet, PDF (104/435 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

4. External clock input method
Connect an external clock signal to pin OSC₁, and leave pin OSC₂ open. Figure 4.6 shows a
typical connection.
OSC ₁
OSC ₂
Open
External clock input
Figure 4.6 External Clock Input (Example)
Frequency
Oscillator Clock (ø_OSC)
Duty cycle
45% to 55%
Note:
The circuit parameters above are recommended by the crystal or ceramic oscillator
manufacturer.
The circuit parameters are affected by the crystal or ceramic oscillator and floating
capacitance when designing the board. When using the oscillator, consult with the crystal
or ceramic oscillator manufacturer to determine the circuit parameters.
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