MB3773 Fujitsu, MB3773 Datasheet - Page 5

• Manufacturer Part Number: MB3773
• Description: Power Supply Monitor with Watch-Dog Timer
• Manufacturer: Fujitsu

(1) DC Characteristics (Continued
(
*
C
Min. supply voltage for RESET
Min. supply voltage for RESET
2)AC Characteristics
V
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
Output rising time *
Output falling time *
Output rising/falling time are measured at 10% to 90% of voltage.
CC
T
charge current
input pulse width
Parameter
Parameter
CC
Power on reset operating
V
V
I
V
R
V
CK
C
C
C
RESET, R
C
RESET, R
C
R
C
R
C
RESET
CT
RESET
RESET
L
CC
T
T
T
L
L
L
L
L
L
)
= 100pF
= 100pF
(2 pin - GND) = 1M
= 0.1 F
= 0.1 F, V
= 100pF
= 100pF
= 0.1 F
= 2.2k
= 2.2k
= 1.0V
5V
4V
= 0.2mA
= 0.4V
=VCC -0.1V
L
L
= 2.2k
= 2.2k
Condition
Condition
CC
or
Symbol
Symbol
V
V
T
T
T
I
T
T
T
T
T
CTU
CCL1
CCL2
CKW
PD1
PD2
t
t
WD
WR
CK
PR
R
F
PI
Min
Min
0.5
8.0
3.0
20
50
5
1
-
-
-
-
-
-
Value
Value
Typ
Typ
100
1.2
0.8
0.8
1.0
0.1
(V
(V
10
2
2
3
-
-
-
CC
CC
MB3773
5V, T
5V, T
Max
Max
150
2.5
1.2
1.2
1.5
0.5
15
10
10
3
-
-
-
a
a
=25 C)
=25 C)
Unit
Unit
ms
ms
ms
V
V
A
s
s
s
s
s
5