The commercial grade Kria K26C SOM (K26C) uses a standard Zynq UltraScale+ MPSoC with the speed/temperature grade of -2LE (VCCINT = 0.72V). The Zynq UltraScale+ MPSoC Data Sheet: DC and AC Switching Characteristics (DS925) lists the specifications for the -2 speed grade when VCCINT = 0.72V that is applicable to the -2LE (VCCINT = 0.72V) devices.