PT7A7534WEX-2017

The 7534 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 - 2.93V (PT7A7514, 7524, 7534) z 200ms reset pulse width z Debounced TTL/CMOS-compatible manual- reset input z Independent watchdog timer 1.6sec time-out (not available for PT7A7531 - 7535) z Reset output signal: Active-high and active-low (PT7A7531 - 7535) z Voltage monitor for power-fail or low battery warning z Guaranteed RESET/RESET valid at VCC=1.2V