MDT2020FF Datasheet, PDF (16/16 Pages) Micon Design Technology Corporation – 8-bit micro-controller

13. External Capacitor Selection For Crystal Oscillator
MDT2020(FF)
@ V_dd＝3.0 V~ 5.0 V
Osc. Type
Resonator Freq.
20 MHz
HF
10 MHz
4 MHz
10 MHz
XT
4 MHz
1 MHz
1 MHz
LF
455 K
32 K
C1
5 pF ~10 pF
10 pF ~50 pF
10 pF ~50 pF
10 pF ~30 pF
10 pF ~50 pF
10 pF ~30 pF
3 pF ~5 pF
10 pF ~30 pF
10 pF ~20 pF
C2
10 pF~30 pF
20 pF ~100 pF
20 pF ~100 pF
10 pF ~50 pF
20 pF ~100 pF
20 pF ~50 pF
3 pF ~5 pF
20 pF ~50 pF
15 pF ~30 pF
MDT2020
OSC1
OSC2
C1
C2
To increase the stability of oscillator and the ability of anti-noise, the above values of the
external capacitor range can be recommended for reference, but the higher capacitance also
increases the start-up time.
This specification are subject to be changed without notice. Any latest information please preview
http;//www.mdtic.com.tw
P. 15
2007/8 VER 1.5