U5021M Datasheet (ATMEL Corporation) - DIGITAL WINDOW WATCHDOG TIMER

U5021M, DIGITAL WINDOW WATCHDOG TIMER

The digital window watchdog timer, U5021M, is a CMOS integrated circuit.

In applications where safety is critical, it is especially important to monitor the microcontroller.

Normal microcontroller operation is indicated by a cyclically transmitted trigger signal, which is received by a window watchd

U5021M Features

* Low Current Consumption: IDD < 100 µA

* RC Oscillator

* Internal Reset During Power-up and Supply Voltage Drops (POR)

* “Short” Trigger Window for Active Mode, “Long” Trigger Window for Sleep Mode

* Cyclical Wake-up of the Microcontroller in Sleep Mode