MB3793-42 Fujitsu Media Devices, MB3793-42 Datasheet - Page 12
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MB3793-42
Manufacturer Part Number
MB3793-42
Description
POWER-VOLTAGE MONITORING IC WITH WATCHDOG TIMER
Manufacturer
Fujitsu Media Devices
Datasheet
1.MB3793-42.pdf
(23 pages)
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DataSheet4U.com
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DataSheet
12
4
MB3793-42
5. Clock pulse input (Positive clock pulse)
6. Inhibition input rising and falling time
U
.com
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
DataSheet4U.com
) switches to charging from discharging.
*2
V
CC
t
90
fi
10
0 V