The SP705-708/813L/813M series is a family of microprocessor (P) supervisory circuits that integrate myriad components involved in discrete solutions which monitor power-supply and battery in P and digital systems. The SP705-708/813L/813M series will significantly improve system reliability and operational efficiency when compared to solutions obtained with discrete components. The features of the SP705-708/813L/813M series include a watchdog timer, a P reset, a Power Fail Comparator, and a manual-reset input. The SP705-708/813L/813M series is ideal for applications in automotive systems, computers, controllers, and intelligent instruments. The SP705-708/813L/813M series is an ideal solution for systems in which critical monitoring of the power supply to the P and related digital components is demanded.