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The PT7M78xx family microprocessor (µP) supervisory circuits are targeted to improve reliability and accuracy of power-supply circuitry in µP systems. These devices reduce the complexity and number of components required to monitor power-supply and battery functions.
The main functions are:
Asserting reset output during power-up, power-down and brownout conditions for µP system.
Detecting power failure or low-battery conditions with a 1.25V threshold detector