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Built-in Watchdog timer

Description

MB3793 is a power voltage monitoring IC with dual-system watchdog timer.

A reset signal is output at transient power cut-off or power fall. When the power resumes, the IC outputs a power-on reset signal to MPU to monitor power voltage. Using this IC in an MCU system can provide such system with a fail-safe function.

Features

• Detection voltage: 4.5V/4.2V/3.7V/3.4V/3.0V/2.8V/2.7V 7type
• Precise detection of power voltage fall: ±2.5%
• Detection voltage with hysteresis
• Internal dual-input watchdog timer
• Watchdog-timer halt function (by inhibition pin)

Application

• Arcade Amusement
• PBX and base stations
• Vending machines etc.