MC9S12DB128B View Datasheet(PDF) - Freescale Semiconductor
Part Name
Description
MFG CO.
'MC9S12DB128B' PDF : 128 Pages View PDF
Freescale SemicondMuC9cSt1o2DrT,1I2n8BcD.evice User Guide — V01.09
EXTAL
MCU
XTAL
CDC *
C1
Crystal or
ceramic resonator
C2
VSSPLL
* Due to the nature of a translated ground Colpitts oscillator a
DC voltage bias is applied to the crystal
Please contact the crystal manufacturer for crystal DC
bias conditions and recommended capacitor value CDC.
Figure 2-4 Colpitts Oscillator Connections (PE7=1)
EXTAL
MCU
XTAL
RB
RS*
C1
Crystal or
ceramic resonator
C2
VSSPLL
* Rs can be zero (shorted) when used with higher frequency crystals.
Refer to manufacturer’s data.
Figure 2-5 Pierce Oscillator Connections (PE7=0)
EXTAL
MCU
XTAL
CMOS-COMPATIBLE
EXTERNAL OSCILLATOR
(VDDPLL-Level)
not connected
Figure 2-6 External Clock Connections (PE7=0)
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