p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 599

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

21.8
21.8.1
Since all kinds of characteristics of the resonator are closely related to the board design by the
user, use the example of resonator connection in this document for only reference; be sure to use
an resonator that has been sufficiently evaluated by the user. Consult with the resonator
manufacturer about the resonator circuit ratings that vary depending on the stray capacitances of
the resonator and installation circuit. Make sure the voltage applied to the oscillation pins do not
exceed the maximum rating.
21.8.2
When using a crystal resonator, the crystal resonator and its load capacitors should be placed as
close as possible to the XTAL and EXTAL pins. Other signal lines should be routed away from
the oscillator to prevent inductive interference with correct oscillation as shown in figure 21.9.
Usage Notes
Notes on Resonator
Notes on Board Design
Figure 21.9 Note on Board Design of Oscillator Section
Prohibited
C
C
L2
L1
Signal A
Signal B
XTAL
EXTAL
Rev. 1.00 Sep. 21, 2006 Page 561 of 658
This LSI
Section 21 Clock Pulse Generator
REJ09B0310-0100