HD6433935 Hitachi, HD6433935 Datasheet - Page 98

• Manufacturer Part Number: HD6433935
• Description: 8-Bit MICROCONTROLLER
• Manufacturer: Hitachi

4.2
Clock pulses can be supplied to the system clock divider either by connecting a crystal or ceramic
oscillator, or by providing external clock input.
1. Connecting a crystal oscillator
Figure 4-2 shows a typical method of connecting a crystal oscillator.
Figure 4-3 shows the equivalent circuit of a crystal oscillator. An oscillator having the
characteristics given in table 4-1 should be used.
Table 4-1
Frequency
R
C
86
S
0
(max)
(max)
OSC
OSC
1
2
OSC
System Clock Generator
Crystal Oscillator Parameters
1
R
f
Figure 4-2 Typical Connection to Crystal Oscillator
Figure 4-3 Equivalent Circuit of Crystal Oscillator
C
C
1
2
L
S
4.193 MHz
100
16 pF
Oscillation
frequency
4.0 MHz
R = 1 M
f
C
S
C
Manufacturer
Nihon Denpa Kogyo 12 pF 20%
20%
0
R
S
Recommended value
for C
1
and C
OSC
2
2