MB3793-45 Fujitsu Media Devices, MB3793-45 Datasheet - Page 6

• Manufacturer Part Number: MB3793-45
• Description: Power Voltage Monitoring IC with Watchdog Timer
• Manufacturer: Fujitsu Media Devices

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DataSheet
6
4
MB3793-45
1. DC Characteristics
*: The values enclosed in parentheses () are setting assurance values.
2. AC Characteristics
*: The voltage range is 10% to 90% at testing the reset output transition time.
U
Power supply current
Detection voltage
Detection voltage hysteresis
difference
Clock-input threshold voltage
Clock-input hysteresis
Inhibition-input voltage
Input current
(CK1, CK2, INH)
Reset output voltage
Reset-output minimum power
voltage
Power-on reset hold time
Watchdog timer reset time
Watchdog timer reset time
Clock input pulse width
Clock input pulse cycle
Reset (RESET) output transition
time*
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ELECTRICAL CHARACTERISTICS
Parameter
Parameter
Symbol
V
V
V
V
V
V
I
V
V
V
V
V
CC1
SHYS
CHTS
I
I
CCL
CIH
CIL
IH
SH
IL
OH
OL
SL
IIH
IIL
Falling
Rising
After exit from reset
V
V
V
CK rising
CK falling
V
V
I
I
I
RESET
RESET
RESET
CC
CC
SH
CK
CK
falling
rising
– V
= 5 V
= 0 V
Symbol
DataSheet4U.com
= –5 mA
= +5 mA
= +50 A
t
SL
t
t
t
t
CKW
CKT
t
t
WD
WR
PR
r
f
*
*
Conditions
Ta = +25 C
Ta = –40 C to +85 C (4.35)*
Ta = +25 C
Ta = –40 C to +85 C (4.45)*
C
C
C
C
C
C
—
—
—
TP
TW
TP
TP
L
L
Conditions
= 50 pF
= 50 pF
= 0.1 F
= 0.1 F
= 0.1 F
= 0.01 F,
—
—
Min.
500
7.5
80
20
(1.4)*
(0.4)*
—
—
5
Min.
4.40
4.50
–1.0
0.8
3.5
4.5
50
—
—
—
—
—
Value
Typ.
(V
(V
130
Value
15
10
Typ.
—
—
—
—
4.50
4.50
4.60
4.60
4.75
0.12
100
1.9
1.3
0.6
0.8
31
—
CC
CC
0
0
0
= +5 V, Ta = +25 C)
= +5 V, Ta = +25 C)
(4.65)*
(4.75)*
Max.
22.5
(1.8)*
(0.8)*
Max.
180
500
500
4.60
4.70
150
15
—
—
2.5
0.8
1.0
0.4
1.2
45
—
—
—
Unit
Unit
mV
ms
ms
ms
ns
ns
ns
V
V
V
V
V
V
V
V
V
s
A
A
A