MB3773 Datasheet, PDF (9/29 Pages) Fujitsu Component Limited. – Power Supply Monitor with Watch-Dog Timer

(2)AC Characteristics
Parameter
Symbol
Condition
VCC input pulse width
5V
TPI
VCC _{4 V}
CK input pulse width
TCKW
CK
or
CK input frequency
Watch-dog timer watching time
Watch-dog timer reset time
TCK
⎯
TWD
CT = 0.1 µF
TWR
CT = 0.1 µF
Rising reset hold time
TPR
CT = 0.1 µF, VCC
Output propagation
delay time from VCC
Output rising time*
Output falling time*
TPD1
RESET, RL = 2.2 kΩ,
CL = 100 pF
TPD2
RESET, RL = 2.2 kΩ,
CL = 100 pF
tR
RL = 2.2 kΩ,
CL = 100 pF
tF
RL = 2.2 kΩ,
CL = 100 pF
* : Output rising/falling time are measured at 10 % to 90 % of voltage.
MB3773
(VCC = 5 V, Ta = + 25 °C)
Value
Unit
Min Typ Max
8.0 ⎯ ⎯ µs
3.0 ⎯ ⎯ µs
20 ⎯ ⎯ µs
5
10 15 ms
1
2
3 ms
50 100 150 ms
⎯
2 10
µs
⎯
3 10
⎯ 1.0 1.5
µs
⎯ 0.1 0.5
9