How do I scale current consumption in CMOS devices operating with different voltages and frequencies?

The power consumption of all CMOS devices is proportional to the voltage and frequency applied to the device. Using the following formula, you can scale power consumption values to fit your

Pref is the power consumed by a CMOS device clocked at Fref Fdesired is the actual device frequency Fref is the frequency when Pref measurement was taken Vdesired is actual device voltage Vref is the voltage when Pref measurement was taken PDC is the DC component of the power consumption.

Typical consumers are pull-up and pulldown resistors, external devices and internal leakage. Assuming that all unused inputs are pulled high or low, the internal leakage of C30 or C40 devices are typically less than 250 uA.