HD64336901G Renesas Technology, HD64336901G Datasheet - Page 110

• Manufacturer Part Number: HD64336901G
• Description: (HD64xxx Series) 16-BIT MICROCONTROLLER
• Manufacturer: Renesas Technology

5.7
5.7.1
Resonator characteristics are closely related to board design and should be carefully evaluated by
the user, referring to the examples shown in this section. Resonator circuit parameters will differ
depending on the resonator element, stray capacitance of the PCB, and other factors. Suitable
values should be determined in consultation with the resonator element manufacturer. Design the
circuit so that the resonator element never receives voltages exceeding its maximum rating.
5.7.2
When using a crystal resonator (ceramic resonator), place the resonator and its load capacitors as
close as possible to pins OSC1 and OSC2. Other signal lines should be routed away from the
oscillator circuit to prevent induction from interfering with correct oscillation (see figure 5.15).
Rev. 1.00, 11/03, page 82 of 376
Usage Notes
Note on Resonators
Notes on Board Design
Figure 5.15 Example of Incorrect Board Design
Prohibited
PC1/OSC2/CLKOUT
PC0/OSC1
Signal A
Signal B
C
C
1
2