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163
μ
PD75517(A)
CHARACTERISTICS OF THE MAIN SYSTEM CLOCK OSCILLATOR
(T
a
= -40 to +85
°
C, V
DD
= 2.7 to 6.0 V)
Notes 1.
The oscillator frequency and input frequency indicate only the oscillator characteristics. See the
item of AC characteristics for the instruction execution time.
The oscillation settling time means the time required for the oscillation to settle after V
DD
is
applied or after the STOP mode is released.
2.
CHARACTERISTICS OF THE SUBSYSTEM CLOCK OSCILLATOR
(T
a
= -40 to +85
°
C, V
DD
= 2.7 to 6.0 V)
Notes 1.
The oscillator frequency and input frequency indicate only the oscillator characteristics. See the
item of AC characteristics for the instruction execution time.
The oscillation settling time means the time required for the oscillation to settle after V
DD
is
applied or after the STOP mode is released.
2.
CAPACITANCE
(T
a
= 25
°
C, V
DD
= 0 V)
Recommended
constant
Ceramic
resonator
Crystal
resonator
External
clock
Oscillator
frequency
(f
X
)
Note 1
Oscillation
settling
time
Note 2
Oscillator
frequency
(f
X
)
Note 1
Oscillation
settling
time
Note 2
X1 input
frequency
(f
X
)
Note 1
X1 input
high/low
level width
(t
XH
, t
XL
)
MHz
ms
MHz
ms
ms
MHz
ns
6.2
4
6.2
10
30
6.2
500
1.0
1.0
1.0
81
4.19
V
DD
= oscillation
voltage range
After V
DD
reaches
Min. of the oscilla-
tion voltage range
V
DD
= 4.5 to 6.0 V
X1
X2
C1
C2
X1
X2
C1
C2
X1
X2
μ
PD74HCU04
Resonator
Parameter
Min.
Typ.
Max.
Unit
Conditions
Recommended
constant
kHz
s
s
kHz
μ
s
32.768
1.0
32
32
5
Oscillator
frequency
(f
XT
)
Note 1
Oscillation
settling
time
Note 2
XT1 input
frequency
(f
XT
)
Note 1
XT1 input
high/low
level width
(t
XTH
, t
XTL
)
Crystal
resonator
External
clock
V
DD
= 4.5 to 6.0 V
35
2
10
100
15
XT1
XT2
C3
C4
R
XT1
XT2
Open
Resonator
Parameter
Min.
Typ.
Max.
Unit
Conditions
Input capacitance
Output capacitance
I/O capacitance
15
15
15
pF
pF
pF
f = 1 MHz
0 V for pins other than pins to be
measured
C
I
C
O
C
IO
Conditions
Unit
Max.
Typ.
Min.
Symbol
Parameter