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MB3793-27A Datasheet, PDF (8/30 Pages) Fujitsu Component Limited. – Power Voltage Monitoring IC with Watchdog Timer | |||
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MB3793-27A
7.2 AC Characteristics
Parameter
Symbol
Conditions
Power-on reset hold time
tPR
CTP = 0.1 ïF
VCC input pulse width
tPI
CTP = 0.1 ïF
VCC delay time
tPD
CTP = 0.1 ïF
Watchdog timer monitor time
tWD
CTW = 0.01 ïF,
CTP = 0.1 ïF
Watchdog timer reset time
tWR
CTP = 0.1 ïF
Clock input pulse width
tCKW
â
Clock input pulse cycle
tCKT
â
Reset (RESET) output transition time
Rising
Falling
tr*1
CL = 50 pF
tf*1
CL = 50 pF
*1:The voltage range is 10% to 90% at testing the reset output transition time.
*2:The values enclosed in parentheses ( ) are setting assurance values.
(VCC = +3.3 V, Ta = +25ï°C)
Value
Unit
Min
Typ
Max
30
75
120
ms
(8)*2
â
â
ïs
â
2
(10)*2
ïs
8
16
24
ms
2
5.5
9
ms
500
â
â
ns
20
â
â
ïs
â
â
500
ns
â
â
500
ns
Document Number: 002-08550 Rev. *A
Page 8 of 30
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