Processor Supervisor 2.97V 3.3V/3V 8-Pin SOIC

The MIC1832 is a low-current microprocessor supervisor for monitoring 3.3V and 3V systems. The device features logic-selectable (TOL) reset thresholds of 10% or 20% of 3.3V; a pushbutton reset input; a watchdog timer with three-state selectable (TD) timeout periods of 150ms, 600ms, or 1.2s; a fixed reset timeout period of 250ms (min); and active-low open-drain reset (/RST) and activehigh push-pull reset (RST) outputs. The /RST output maintains a valid reset condition for VCC as low as 1.4V. The MIC1832 asserts a reset condition if the supply voltage drops below the reset threshold, the pushbutton reset is asserted low, or the watchdog timer does not see a high-to-low transition on the watchdog timer input within the watchdog timer period. A reset condition is held for the reset timeout period of 250ms (min) after the pushbutton input is released, after the supply voltage increases above the reset threshold voltage, or after the watchdog has initiated a reset. The MIC1832 is a drop-in replacement for the DS1832. It operates over the -40°C to +85°C temperature range and is available in Pb-Free 8-pin SOIC and PDIP packages. Low-current version of DS1832 Low current: 15µA (typ), 25µA (max) Selectable threshold (TOL): 10% or 20% of 3.3V Selectable watchdog timer (TD): 150ms, 600ms, 1.2s Power OK/Reset time delay: 250ms (min) Debounced pushbutton reset input Dual complementary reset outputs o Active-low, open-drain reset output o Active-high, push-pull reset output Available in Pb-Free 8-pin SOIC and PDIP packages -40°C to +85°C temperature range