Part # MAX698-MAX699 datasheet

Part Manufacturer: Maxim


Part Description: MAX698 699 DS

Part Details:

19-2349; Rev 3; 12/05 Low-Cost, Power-On Reset and Watchdog Controllers MAX698/MAX699 General Description Features The MAX698/MAX699 monitor the +5V supply in micro- Precision Voltage Monitor processor (µP) and digital systems. They supply aRESET pulse of at least 140ms duration on power-up, Power-OK/Reset Time Delay power-down, and during low-voltage brownout condi- Watchdog Timer tions. Circuit reliability is increased at reduced cost byeliminating all external components and adjustments. Minimum Component Count The MAX699 includes all features of the MAX698, butalso provides a watchdog input to monitor microproces-sor activity. The RESET output goes low if the watchdog Ordering Information input (WDI) is not toggled within 1 second. The watch- PART* TEMP RANGE PIN-PACKAGE dog feature can be disabled by leaving WDI open. MAX698CPA 0°C to +70°C 8 PDIP Both parts are supplied in 8-lead PDIP and 16-lead0.3in wide small outline (SO) packages and are speci- MAX698CWE 0°C to +70°C 16 Wide SO fied from 0°C to +70°C for C grade devices and -40°C MAX698EPA -40°C to +85°C 8 PDIP to +85°C for E devices. The SO versions, with more MAX698EWE -40°C to +85°C 16 Wide SO pins than the 8-lead PDIP, have additional outputs not MAX699CPA 0°C to +70°C 8 PDIP available in DIP packages. These are RESET (withoutinversion) and watchdog output (WDO). MAX699CWE 0°C to +70°C 16 Wide SO MAX699EPA -40°C to +85°C 8 PDIP Applications MAX699EWE -40°C to +85°C 16 Wide SO Computers *Devices are available in both leaded and lead-free packag- Controllers ing. Specify lead free by adding the + symbol at the end of the

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MAX698-MAX699.pdf Datasheet