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171
μ
PD75236
MAIN SYSTEM CLOCK OSCILLATOR CHARACTERISTICS (Ta = –40 to +85
°
C, V
DD
= 2.7 to 6.0 V )
UNIT
MAX.
TYP.
UNIT
MAX.
TYP.
MIN.
PARAMETER
TEST CONDITIONS
MIN.
V
DD
= Oscillation
voltage range
After V
DD
reaches the
minimum value in
the oscillation
voltage range
V
DD
= 4.5 to 6.0 V
Oscillator frequency
(f
X
)
*1
Oscillation
stabilization time
*2
Oscillator frequency
(f
X
)
*1
Oscillation stabilization
time
*2
X1 input frequency
(f
X
)
*1
X1 high and low level
widths (t
XH
, t
XL
)
X1
X2
C1
C2
X1
X2
C1
C2
* 1.
Oscillator characteristics only. Refer to the description of AC characteristics for details of instruction
execution time.
Time required for oscillation to become stabilized after V
DD
application or STOP mode release.
When oscillation frequency is " 4.19 < f
X
≤
5.0 MHz ", do not select " PCC = 0011 " as instruction execution
time. If " PCC = 0011 " is selected, 1 machine cycle becomes less than 0.95
μ
s, with the result that the
specified MIN. value of 0.95
μ
s cannot be observed.
2.
3.
SUBSYSTEM CLOCK OSCILLATOR CHARACTERISTICS (Ta = –40 to +85
°
C, V
DD
= 2.7 to 6.0 V)
* 1.
Oscillator characteristics only. Refer to the description of AC characteristics for instruction execution
time.
Time required for oscillation to become stabilized after V
DD
application or STOP mode release.
2.
XT1
XT2
C3
C4
R
PARAMETER
TEST CONDITIONS
Oscillator frequency
(f
XT
)
*1
Oscillation stabilization
time
*2
XT1 input frequency
(f
XT
)
*1
XT1 high and low level
widths (t
XTH
, t
XTL
)
X1
X2
μ
PD74HCU04
XT1
XT2
#
RESONATOR RECOMMENDED CIRCUIT
RESONATOR RECOMMENDED CIRCUIT
2.0
2.0
2.0
100
Ceramic
resonator
Crystal
resonator
External
clock
4.19
5.0
4
5.0
*3
10
30
5.0
250
MHz
ms
MHz
ms
ms
MHz
ns
Crystal
resonator
External
clock
V
DD
= 4.5 to 6.0 V
32
32
5
32.768
1.0
35
2
10
100
15
kHz
s
s
kHz
μ
s