SLVS331I December 2000 – October 2021
PRODUCTION DATA
These devices are designed to operate from an input supply with a voltage range from 2 V to 6 V. An input supply capacitor is not required for this device; however, if the input supply is noisy, then good analog practice is to place a 0.1-µF capacitor between the VDD pin and the GND pin. This device has a 7-V absolute maximum rating on the VDD pin. If the voltage supply providing power to VDD is susceptible to any large voltage transient that can exceed 7 V, additional precautions must be taken.
In applications where the WDI input may experience a negative voltage while VDD is ramping from 0 V to 0.8 V, the VDD slew rate in this range must be greater than 10 V/s. A negative voltage on the WDI input along with a slew rate less than 10 V/s could result in a greatly reduced watchdog window time and reset output delay time.