Part # ADM698 AD699 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: ADM698/ADM699 Microprocessor Supervisory Circuits Data Sheet (Rev. 0)

Part Details:

a Microprocessor Supervisory Circuits ADM698/ADM699 FEATURES FUNCTIONAL BLOCK DIAGRAM Superior Upgrade for MAX698/MAX699Guaranteed RESET Assertion with VCC = 1 VLow 0.6 mA Supply Current ADM698/ Precision 4.65 V Voltage Monitor ADM699 RESET* Power OK/Reset Time Delay VCC Watchdog Timer RESET GENERATOR RESET Minimum Component CountPerformance Specified over Temperature 4.65V APPLICATIONS WATCHDOG WATCHDOG WATCHDOG Microprocessor Systems INPUT TRANSITION DETECTOR WDI* (1 sec) OUTPUT WDO* ComputersControllersIntelligent Instruments *WDI (ADM699 ONLY) RESET (SOIC ONLY) Automotive Systems WDO (ADM699 SOIC ONLY) Critical P Power Monitoring TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION +5V The ADM698/ADM699 supervisory circuits provide powersupply monitoring and watchdog timing for microprocessor VCC µP POWER systems. RESET µP RESET The ADM698 monitors the 5 V VCC power supply and gener-ates a RESET pulse during power up, power down and during ADM698/ µP SYSTEM low voltage "Brown Out" conditions. The RESET output is ADM699 guaranteed to be functional (logic low) with VCC as low as 1 V. WDI* I/O LINE The ADM699 features an identical monitoring circuit as in theADM698 plus an additional watchdog timer input to monitor GND microprocessor activity. The RESET output is forced low if the *ADM699 ONLY

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ADM698 AD699.pdf Datasheet