MB3793-42 Fujitsu Media Devices, MB3793-42 Datasheet - Page 10

• Manufacturer Part Number: MB3793-42
• Description: POWER-VOLTAGE MONITORING IC WITH WATCHDOG TIMER
• Manufacturer: Fujitsu Media Devices

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DataSheet
10
4
MB3793-42
3. Single-clock input monitoring (Positive clock pulse)
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Note: The MB3793 can monitor only one clock.
RESET
CTW
CK1
CK2
CTP
The MB3793 checks the clock signal at every other input pulse. Therefore, set watchdog
timer monitor time t
long as the input clock pulse.
V
V
V
th
H
L
WD
to the time that allows the MB3793 to monitor the period twice as
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t
CKW
t
WD
t
CKT
t
WR