FUJITSU MB3773 - Manual (Page 9)

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