MB3793-27A Datasheet, PDF (16/25 Pages) Fujitsu Component Limited. – Power Voltage Monitoring IC with Watchdog Timer

MB3793-27A
■ APPLICATION EXAMPLE
1. Supply voltage monitor and watchdog timer (1-clock monitor)
VCC
CTW*
CTP*
2 CTW
5
VCC
RESET 1
MB3793
3 CTP
CK1 ₈
6 INH GND CK2 ₇
4
RESET VCC
Microprocessor
CK
GND
GND
*: Use a capacitor with less leakage current.
The MB3793 monitors the clock (CK1, CK2) at every other input pulse.
2. Supply voltage monitor and watchdog timer stop
VCC
6 _INH
5
VCC
RESET 1
CTW*
GND
MB3793
2 CTW
CK1 8
CTP*
3 CTP GND CK2 7
4
RESET VCC
Microprocessor 1
CK
HALT
GND
*: Use a capacitor with less leakage current.
RESET VCC
Microprocessor 2
CK
HALT
GND
16