Elan EM78P156EL Manual page 27

Table 10 Capacitor Selection Guide for Crystal Oscillator or Ceramic Resonator
Oscillator Type
Ceramic Resonators
Crystal Oscillator
EM78P156EL
This specification is subject to change without prior notice.
Frequency Mode
OSCI
7404
Fig. 13 Circuit for Crystal/Resonator-Series Mode
OSCI
EM78P156EL
Fig. 14 Circuit for Crystal/Resonator-Parallel Mode
Frequency
455 kHz
HXT
2.0 MHz
4.0 MHz
32.768kHz
LXT
100KHz
200KHz
455KHz
1.0MHz
HXT
2.0MHz
4.0MHz
330
7404
4.7K
7404 7404
10K
XTAL
C1 C2
27
EM78P156EL
C1(pF)
100~150
20~40
10~30
25
25
25
20~40
15~30
15
15
330
C
7404
XTAL
10K
Vdd
OTP ROM
C2(pF)
100~150
20~40
10~30
15
25
25
20~150
15~30
15
15
2002/04/19