UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.
VDD pin is monitored by the internal comparator with integrated reference to indicate when VDD falls below the fixed threshold voltage. VDD also functions as the supply for the following:
Good design practice involves placing a 0.1-µF to 1-µF bypass capacitor at VDD input for noisy applications and to ensure enough charge is available for the device to power up correctly. The reset output is undefined when VDD is below VPOR.