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MPC5644B 데이터시트(PDF) 68 Page - Freescale Semiconductor, Inc

부품명 MPC5644B
상세설명  Microcontroller 64 KB on-chip data flash memory to support EEPROM emulation
PDF  114 Pages
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제조업체  FREESCALE [Freescale Semiconductor, Inc]
홈페이지  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC5644B 데이터시트(HTML) 68 Page - Freescale Semiconductor, Inc

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MPC5646C Microcontroller Data Sheet, Rev. 3
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
68
Figure 12. Crystal oscillator and resonator connection scheme
NOTE
OSC32K_XTAL/OSC32K_EXTAL must not be directly used to drive external circuits.
l
Figure 13. Equivalent circuit of a quartz crystal
Table 36. Crystal motional characteristics1
Symbol
Parameter
Conditions
Value
Unit
Min
Typ
Max
Lm
Motional inductance
—
—
11.796
—
KH
Cm
Motional capacitance
—
—
2
—
fF
C1/C2 Load capacitance at OSC32K_XTAL and
OSC32K_EXTAL with respect to ground2
—18
—
28
pF
Rm
3
Motional resistance
AC coupled @ C0 = 2.85 pF4
——
65
k
AC coupled @ C0 = 4.9 pF(4)
——
50
AC coupled @ C0 = 7.0 pF(4)
——
35
AC coupled @ C0 = 9.0 pF(4)
——
30
OSC32K_XTAL
OSC32K_EXTAL
DEVICE
C2
C1
OSC32K_XTAL
OSC32K_EXTAL
RP
DEVICE
C0
C2
C1
C2
Rm
C1
Lm
Cm
Crystal



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