1009
Chapter 25
Electrical Specifications
User’s Manual U16580EE3V1UD00
25.2.3 Oscillator
characteristics
Figure 25-1:
Oscillator Recommendations
Remark:
Values of capacitors C1’, C2’ and R’ depend on used crystal or resonator and must be
specified in cooperation with the manufacturer.
Cautions: 1. External clock input is prohibited.
2. Wire as follows in the area enclosed by the broken lines in the above figure to
avoid an adverse effect from wiring capacitance.
•
Keep the wiring length as short as possible.
•
Do not cross the wiring with the other signal lines.
•
Do not route the wiring near a signal line through which a high fluctuating
current flows.
•
Always make the ground point of the oscillator capacitor the same potential
as CV
SS
.
•
Do not ground the capacitor to a ground pattern through which a high
current flows.
•
Do not fetch signals from the oscillator.
Table 25-4:
Oscillator Characteristics
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Oscillation frequency
f
OSC
16
MHz
Oscillation stabilization
time
t
OST
f
OSC
= 16 MHz
4.096
ms
X2
X1
C2'
C1'
R'
Qu
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Страница 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Страница 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
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Страница 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
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