ADM699 Analog Devices, ADM699 Datasheet
ADM699
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ADM699 Summary of contents
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... RESET pulse during power up, power down and during low voltage “Brown Out” conditions. The RESET output is guaranteed to be functional (logic low) with V The ADM699 features an identical monitoring circuit as in the ADM698 plus an additional watchdog timer input to monitor microprocessor activity. The RESET output is forced low if the watchdog input is not toggled within the 1 second watchdog timeout period ...
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... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the ADM698/ADM699 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality ...
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... Logic Output. RESET is an active high output the inverse of RESET. WDO (SOIC ADM699 only) Logic Output. The Watchdog Output, WDO, goes low if WDI remains either high or low for longer than the watchdog timeout period. WDO is set high by the next transition at WDI ...
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... RESET TIME 1 Figure 4. Watchdog Timeout Period vs. Temperature 8-Pin Plastic DIP (N-8) Watchdog Timer (ADM699 Only) The watchdog timer input (WDI) monitors an I/O line from the and generates a P system. The P must toggle this input once every 1.6 sec- CC onds to verify correct software execution. Failure to toggle the line indicates that the P system is not correctly executing its program and may be tied endless loop ...