h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 604

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 20 Clock Pulse Generator
20.6
20.6.1
To supply a clock to the subclock divider, connect a 32.768-kHz crystal resonator, as shown in
figure 20.6. Concerning the note on connection, see section 20.8.2, Note on Board Design.
Figure 20.7 shows the equivalent circuit for a 32.768-kHz crystal resonator.
Rev. 2.00 Dec. 05, 2005 Page 566 of 724
REJ09B0200-0200
OSC1
Subclock Oscillator
Connecting 32.768-kHz Crystal Resonator
Figure 20.6 Connection Example of 32.768-kHz Crystal Resonator
Figure 20.7 Equivalent Circuit for 32.768-kHz Crystal Resonator
Note: * C1 and C2 are reference values including the floating
OSC2
OSC1
capacitance of the boad.
L
s
C
s
C
C
1
2
C
o
C
1
= C
R
2
s
= 15pF (typ) *
OSC2