Renesas H8 Series Hardware Manual page 150

Section 4 Clock Pulse Generators
Table 4.2 Crystal Oscillator Parameters
Frequency (MHz)
RS max (Ω)
C max (pF)
0
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
Figure 4.5(1) Typical Connection to Ceramic Oscillator
OSC
1
R
f
OSC
2
Ceramic oscillator
Figure 4.5(2) Typical Connection to Ceramic Oscillator
Rev. 7.00 Mar 10, 2005 page 108 of 652
REJ09B0042-0700
4
100
16
C
1
R
f
C
2
(H8/38024, H8/38024R Group)
C
1
= 1 MΩ ±20%
R
f
C
2
Frequency
2.0 MHz
10.0 MHz
16.0 MHz *
20.0 MHz *
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
(H8/38024S, H8/38124 Group)
Ω ±20%
R = 1 M
f
Ceramic
Frequency
oscillator
4.0 MHz Murata
Ceramic
Products name
oscillator
Murata CSTCC2M00G53-B0
CSTCC2M00G56-B0
CSTLS10M0G53-B0
CSTLS10M0G56-B0
1
CSTLS16M0X53-B0
2
CSTLS20M0X53-B0
4.193
100
16
C , C
1 2
Recommendation
value
30 pF ±10%
C 1 , C 2
Recommendation
value
15 pF ±20%
47 pF ±20%
15 pF ±20%
47 pF ±20%
15 pF ±20%
15 pF ±20%