The AME8510/8520/8530 family allows the user to customizethe CPU monitoring function without any externalcomponents. The user has a large choice of reset voltagethresholds and output driver configurations, all of whichare preset at the factory. Each wafer is trimmed to thecustomer's specifications.These circuits will ignore fast negative going transientson VIN. The state of the reset output is guaranteed to becorrect down to 1V.After VIN crosses above a factory preset threshold, theAME8510/8520/8530 assert a reset signal. After a predeterminedtime (the“ reset” interval) the reset isdeasserted. If VIN ever drops below the threshold voltagea reset is asserted immediately. In addition to a supplymonitoring function the AME8510/8520 also monitor transitionsat the watch dog input (WDI). If a logic transitiondoes not occur at the WDI pin within a certain time interval(the “watchdog”interval) then a reset is asserted. Thereset deasserts after the reset interval, as explained earlier.The AME8510/8530 can both assert a reset manuallyby pulling the MRB input to ground.Space saving SOT-25/TSOT-25 packages andmicropower quiescent current make this family a naturalfor portable battery powered equipment.