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(2)AC Characteristics
Parameter
V
input pulse width
CC
CK input pulse width
CK input frequency
Watch dog timer watching time
Watch dog timer reset time
Rising reset hold time
Output propagation
delay time from V
CC
Output rising time*
Output falling time*
* : Output rising/falling time are measured at 10
Symbol
Condition
5 V
T
PI
V
CC
4 V
CK
T
CKW
T
CK
T
C
0.1 F
WD
T
T
C
0.1 F
WR
T
T
C
0.1 F, V
PR
T
CC
RESET, R
2.2 k ,
L
T
PD1
C
100 pF
L
RESET, R
2.2 k ,
L
T
PD2
C
100 pF
L
R
2.2 k ,
L
t
R
C
100 pF
L
R
2.2 k ,
L
t
F
C
100 pF
L
to 90
of voltage.
(
V
Min
8.0
3.0
or
20
5
1
50
MB3773
C)
5 V, Ta
25
CC
Value
Unit
Typ
Max
s
s
s
10
15
ms
2
3
ms
100
150
ms
2
10
s
3
10
1.0
1.5
s
0.1
0.5
9
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