HD64F3670 RENESAS [Renesas Technology Corp], HD64F3670 Datasheet - Page 86

• Manufacturer Part Number: HD64F3670
• Description: Hitachi Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

5.1.1
Figure 5.3 shows a typical method of connecting a crystal resonator. An AT-cut parallel-resonance
crystal resonator should be used. Figure 5.4 shows the equivalent circuit of a crystal resonator. A
resonator having the characteristics given in table 5.1 should be used.
Table 5.1 Crystal Resonator Parameters
Frequency (MHz)
R
C
5.1.2
Figure 5.5 shows a typical method of connecting a ceramic resonator.
Rev. 2.0, 03/02, page 62 of 298
S
0
(max)
(max)
Connecting Crystal Resonator
Connecting Ceramic Resonator
OSC
Figure 5.5 Typical Connection to Ceramic Resonator
Figure 5.3 Typical Connection to Crystal Resonator
Figure 5.4 Equivalent Circuit of Crystal Resonator
1
OSC
OSC
2
500
7 pF
1
2
OSC
OSC
1
2
L
S
4
120
7 pF
C
C
C
S
1
2
C
C
C
1
2
0
8
80
7 pF
C = C = 12 pF ±20%
1
R
C
C
S
1
2
= 30 pF ±10%
= 30 pF ±10%
2
10
60
7 pF
OSC
2
16
50
7 pF