Rev. 1.0, 02/00, page 177 of 1141
Note on Board Design: When a crystal resonator is connected, the following points should be
noted.
Other signal lines should be routed away from the oscillator circuit to prevent induction from
interfering with correct oscillation. See figure 9.4.
When designing the board, place the crystal resonator and its load capacitors as close as possible
to the OSC1 and OSC2 pins.
C
L2
Signal A Signal B
C
L1
This chip
OSC1
OSC2
Avoid
Figure 9.4 Example of Incorrect Board Design