MB3793-30A View Datasheet(PDF) - Fujitsu
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MB3793-30A Datasheet PDF : 26 Pages
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MB3793-30A
■ ELECTRICAL CHARACTERISTICS
1. DC Characteristics
Parameter
Symbol
Conditions
(VCC = +3.3 V, Ta = +25 °C)
Value
Unit
Min
Typ
Max
Power supply current
ICC After exit from reset
⎯
31
45
µA
Detection voltage
Ta = +25 °C
2.93 3.00 3.07
VSL VCC falling
V
Ta = −40 °C to +85 °C (2.89)* 3.00 (3.11)*
Ta = +25 °C
3.00 3.07 3.14
VSH VCC rising
V
Ta = −40 °C to +85 °C (2.96)* 3.07 (3.18)*
Detection voltage hysteresis
difference
VSHYS VSH – VSL
30
70
110 mV
VCIH CK rising
Clock-input threshold voltage
VCIL CK falling
(0.7)* 1.3
1.9
V
0.5
1.0 (1.5)* V
Clock-input hysteresis
VCHYS
⎯
(0.1)* 0.3 (0.6)* V
VIIH
⎯
2.2
⎯
VCC
Inhibition-input voltage
V
VIIL
⎯
0
⎯
0.8
Input current
(CK1, CK2, INH)
IIH
VCK = 5 V
IIL
VCK = 0 V
⎯
0
−1.0
0
1.0 µA
⎯
µA
Reset output voltage
VOH IRESET = −3 mA
VOL IRESET = +3 mA
2.8
3.10
⎯
V
⎯
0.12
0.4
V
Reset-output minimum power
voltage
VCCL
IRESET = +50 µA
⎯
0.8
1.2
V
* : The values enclosed in parentheses ( ) are setting assurance values.
2. AC Characteristics
Parameter
Power-on reset hold time
Watchdog timer monitor time
Watchdog timer reset time
Clock input pulse width
Clock input pulse cycle
Reset (RESET) output transition Rising
time
Falling
Symbol Conditions
tPR
CTP = 0.1 µF
tWD
CTW = 0.01 µF,
CTP = 0.1 µF
tWR CTP = 0.1 µF
tCKW
⎯
tCKT
⎯
tr*
CL = 50 pF
tf*
CL = 50 pF
(VCC = +3.3 V, Ta = +25 °C)
Value
Unit
Min
Typ
Max
30
75
120 ms
8
16
24
ms
2
5.5
9
ms
500
⎯
⎯
ns
20
⎯
⎯
µs
⎯
⎯
500
ns
⎯
⎯
500
ns
* : The voltage range is 10% to 90% at testing the reset output transition time.
6
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