Processor Supervisor 4.44V 8-Pin SOIC

The 7511 family microprocessor (µP) supervisory circuits are targeted to improve reliability and accuracy of power-supply circuitry in µP’s systems. These devices reduce the complexity and number of components required to monitor powersupply and battery functions. The main functions are: 1. Asserting reset output during power-up, powerdown and brownout conditions for µP system. 2. Detecting power failure or low-battery conditions with a 1.25V threshold detector. 3. Watchdog functions (not for PT7A753x). Precision supply-voltage monitor -4.63V (PT7A7511, 7521, 7531) 200ms reset pulse width Debounced TTL/CMOS-compatible manual- reset input Independent watchdog timer 1.6sec time-out (not available for PT7A7531 - 7535) Reset output signal: Active-low only (PT7A7511 - 7515) Voltage monitor for power-fail or low battery warning Guaranteed RESET/RESET valid at VCC=1.2V