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HD64F3687GFPV Datasheet, PDF (105/538 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents | |||
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Table 5.1 Crystal Resonator Parameters
Frequency (MHz)
R (max)
S
C (max)
0
2
500 â¦
7 pF
4
120 â¦
7 pF
8
80 â¦
7 pF
Section 5 Clock Pulse Generators
10
60 â¦
7 pF
16
50 â¦
7 pF
20
40 â¦
7 pF
5.1.2 Connecting Ceramic Resonator
Figure 5.5 shows a typical method of connecting a ceramic resonator.
OSC1
OSC2
C1
C2
C1 = 5 to 30 pF
C2 = 5 to 30 pF
Figure 5.5 Typical Connection to Ceramic Resonator
5.1.3 External Clock Input Method
Connect an external clock signal to pin OSC1, and leave pin OSC2 open. Figure 5.6 shows a typical
connection. The duty cycle of the external clock signal must be 45 to 55%.
OSC1
OSC 2
Open
External clock input
Figure 5.6 Example of External Clock Input
Rev.5.00 Nov. 02, 2005 Page 71 of 500
REJ09B0027-0500
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