參數(shù)資料
型號: S12SCIV2
廠商: Motorola, Inc.
英文描述: MC9S12DT128 Device User Guide V02.09
中文描述: MC9S12DT128設(shè)備的用戶手冊V02.09
文件頁數(shù): 66/138頁
文件大小: 2083K
代理商: S12SCIV2
MC9S12DT128 Device User Guide — V02.09
66
Figure 2-5 Colpitts Oscillator Connections (PE7=1)
Figure 2-6 Pierce Oscillator Connections (PE7=0)
Figure 2-7 External Clock Connections (PE7=0)
MCU
C
2
EXTAL
XTAL
Crystal or
ceramic resonator
VSSPLL
C
1
C
DC
*
* 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 C
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
(VDDPLL-Level)
not connected
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