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General Description The MIC1832 is a multifunction circuit which monitors microprocessor activity, external reset and power supplies in microprocessor based systems. The circuit functions include a watchdog time, power supply monitor, microprocessor reset, and manual pushbutton reset input. Features • Power OK/Resettime delay, 250ms min. • Watchdog timer, 150ms, 600ms, or 1.2s typical • Precision supply voltage monitor, select between 5% or 10% of supply voltage • Avaiable in 8-pin surface mount (SO) • Debounced External reset input • Low supply current, <18µA typical Applications • Autimotive systems • Intelligent systems • Critical microprocessor power monitoring • Battery powered computers • Controllers
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