MB3793-28A

MB3793-28A Description Power-Voltage Monitoring IC with Watchdog Timer Datasheet The MB3793 is an integrated circuit to monitor power voltage; it incorporates a watchdog timer. A reset signal is output when the power is cut or falls abruptly. When the power recovers normally after resetting, a power-on reset signal is output to microprocessor units (MPUs). An internal watchdog timer with two inputs for system operation diagnosis can provide a fail-safe function for various application systems. Model No. MB3793-28A Marking Code 3793AR Detection voltage 2.8 V Features ■ Precise detection of power voltage fall: ±2.5% ■ Detection voltage with hysteresis ■ Low power dispersion: ICC = 41 μA (Typ) ■ Internal dual-input watchdog timer ■ Watchdog timer halt function ■ Independently-set watchdog and reset times Application ■ Arcade Amusement etc. Cypress Semiconductor Corporation 198 Champion Court Document Number: 002-08559 Rev. *C San Jose, CA 95134-1709 ...