HD64F38024HV Datasheet, PDF (130/684 Pages) Renesas Technology Corp – Hardware Manual Renesas 8-Bit Single-Chip Microcomputer H8 Family/H8/300L Super Low Power Series

Section 4 Clock Pulse Generators
Table 4.2 Crystal Oscillator Parameters
Frequency (MHz)
4
RS max (Ω)
100
C0 max (pF)
16
4.193
100
16
Connecting a Ceramic Oscillator
Figure 4.5(1) shows a typical method of connecting a ceramic oscillator to the H8/38024 or
H8/38024R Group, and figure 4.5(2) shows a typical method of connecting a crystal oscillator to
the H8/38024S and H8/38124 Group.
OSC ₁
OSC ₂
C₁
R_f
C₂
R _f = 1 MΩ ±20%
Frequency
Ceramic
oscillator
4.0 MHz Murata
C₁, C₂
Recommendation
value
30 pF ±10%
Figure 4.5(1) Typical Connection to Ceramic Oscillator
(H8/38024, H8/38024R Group)
OSC₁
OSC₂
C₁
R_f
C₂
Ceramic oscillator
R_f = 1 MΩ ±20%
Frequency
Ceramic
oscillator
Products name
C1, C2
Recommendation
value
2.0 MHz
Murata
CSTCC2M00G53-B0 15 pF ±20%
CSTCC2M00G56-B0 47 pF ±20%
10.0 MHz
16.0 MHz^*1
20.0 MHz^*2
CSTLS10M0G53-B0
CSTLS10M0G56-B0
CSTLS16M0X53-B0
CSTLS20M0X53-B0
15 pF ±20%
47 pF ±20%
15 pF ±20%
15 pF ±20%
Notes: Circuit constants should be determined in consultation
with the resonator manufacturer.
1. This does not apply to the H8/38024S Group.
2. H8/38124 Group only
Figure 4.5(2) Typical Connection to Ceramic Oscillator
(H8/38024S, H8/38124 Group)
Rev. 8.00 Mar. 09, 2010 Page 108 of 658
REJ09B0042-0800