Datasheet

MC9S12DT128B Device User Guide — V01.09
Figure 2-4 Colpitts Oscillator Connections (PE7=1)
Figure 2-5 Pierce Oscillator Connections (PE7=0)
Figure 2-6 External Clock Connections (PE7=0)
MCU
C
2
EXTAL
XTAL
Crystal or
VSSPLL
ceramic resonator
C
1
C
DC
*
* Due to the nature of a translated ground Colpitts oscillator a
DC voltage bias is applied to the crystal
bias conditions and recommended capacitor value C
DC
.
Please contact the crystal manufacturer for crystal DC
MCU
EXTAL
XTAL
R
S
*
R
B
VSSPLL
Crystal or
ceramic resonator
C
2
C
1
* Rs can be zero (shorted) when used with higher frequency crystals.
Refer to manufacturer’s data.
MCU
EXTAL
XTAL
CMOS-COMPATIBLE
EXTERNAL OSCILLATO
R
not connected
(VDDPLL-Level)
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
nc
.
..