MB3793-42PF FUJITSU [Fujitsu Component Limited.], MB3793-42PF Datasheet - Page 12

• Manufacturer Part Number: MB3793-42PF
• Description: POWER-VOLTAGE MONITORING IC WITH WATCHDOG TIMER
• Manufacturer: FUJITSU [Fujitsu Component Limited.]

12
MB3793-42
5. Clock pulse input (Positive clock pulse)
6. Inhibition input rising and falling time
Note: The MB3793 watchdog timer monitors Clock 1 (CK1) and Clock 2 (CK2) pulses al-
CTW
CK1
CK2
V
V
ternately. When a CK2 pulse is detected after detecting a CK1 pulse, the monitor-
ing time setting capacity (C
When two consecutive pulses occur on one side of this alternation before switch-
ing, the second pulse is ignored. In the above figure, pulses *1 and *2 are ignored.
H
L
INH
10 %
90 %
t
ri
*1
TW
) switches to charging from discharging.
*2
V
CC
t
90 %
fi
10 %
0 V