UPSD3422_06 Datasheet, PDF (68/293 Pages) STMicroelectronics – Turbo Plus Series Fast Turbo 8032 MCU with USB and Programmable Logic

Oscillator and external components
Figure 15. Oscillator and clock connections
XTAL1
(in)
XTAL2
(out)
Crystal or Resonator
Usage
uPSD34xx
L1
C1
XTAL
C2
C3
(fOSC)
XTAL (fOSC)
Ceramic Resonator
Crystal, fundamental mode (3-40MHz)
Crystal, overtone mode (25-40MHz)
C1 = C2
40 - 50pF
15-33pF
20pF
C3
None
None
10nF
Direct Drive
XTAL1
(in)
XTAL2
(out)
L1
None
None
2.2µH
External Ocsillator or
Active Clock Source
No Connect
AI09198
68/293