ATA5021 Overview
The digital window watchdog timer, Atmel® ATA5021, is designed in Atmel’s state-of-the-art 0.8µm SOI technology SMART-I.S.™1. 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 watchdog timer within a defined time window.
ATA5021 Key Features
- Low current consumption: IVDD < 25µA
- RC oscillator
- Internal reset during power-up and supply voltage drops (POR)
- Cyclical wake-up of the microcontroller in sleep mode
- Trigger input
- Single wake-up input
- Reset output
- Enable output