Renesas H8 Series Hardware Manual page 149

OSC
1
OSC
2
Figure 4.3(1) Typical Connection to Crystal Oscillator
OSC
1
R
f
OSC
2
Figure 4.3(2) Typical Connection to Crystal Oscillator
Figure 4.3 shows the equivalent circuit of a crystal oscillator. An oscillator having the
characteristics given in table 4.2 should be used.
OSC
1
R = 1 M
C
1
R
f
C
2
Note: Circuit constants should be determined in
(H8/38024, H8/38024R Group)
C
1
R = 1 M
f
C
2
Frequency
4.0 MHz
Note: Circuit constants should be determined in consultation
(H8/38024S, H8/38124 Group)
L
S
Figure 4.4 Equivalent Circuit of Crystal Oscillator
Section 4 Clock Pulse Generators
Ω ±20%
f
Crystal
Frequency
oscillator
4.19 MHz NDK
consultation with the resonator manufacturer.
Ω ±20%
Crystal
oscillator
NDK
with the resonator manufacturer.
C
S
R
C
0
Rev. 7.00 Mar 10, 2005 page 107 of 652
C , C
1 2
Recommendation
value
12 pF ±20%
C , C
1
Products
Recommendation
name
value
12 pF ±20%
NR-18
S
OSC
REJ09B0042-0700
2
2