Monitors both 3.3V and 5V power supplies 3.3V and 5V power-on and power transient resets Provides pushbutton switch for manual reset control Active low push-pull outputs (DS1834) Active low open-drain outputs (DS1834A) Active high push-pull outputs (DS1834D) Draws internal power from the higher of the two sources Uses precision temperature-compensated voltage reference and sensor Maintains active high reset for 350ms after power return Internal 5kΩ pull-up resistor Operating ranges: 5V with 5% or 10% tolerance 3.3V with 10% or 20% tolerance -40°C to +85°C
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