MB3793-30APFV Просмотр технического описания (PDF) - Fujitsu

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MB3793-30APFV

Power Voltage Monitoring IC with Watchdog Timer

Fujitsu 

5. Clock pulse input supplementation (Positive clock pulse)

tCKT

tCKW

*1

CK1

MB3793-30A

CK2

*2

VH

CTW

VL

Note : The MB3793 watchdog timer monitors Clock1 (CK1) and Clock2 (CK2) pulses alternately.

When a CK2 pulse is detected after detecting a CK1 pulse, the monitoring time setting capacity

(CTW) switches to charging from discharging.

When two consecutive pulses occur on one side of this alternation before switching, the second

pulse is ignored.

In the above figure, pulse *1 and *2 are ignored.

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