The total power dissipation of an IC is the sum of the power consumed by each power
supply(1)(2) and it can be divided into two parts:
- The power consumed by the core logic of the
circuit: in the SAMA7G54 device, this core logic power is drawn by VDDCORE and
VDDCPU rails. It accounts for the dynamic power and leakage power of the device
logic gates.
- The power consumed by analog circuits and digital
I/Os: this is the power drawn by all the other power supply inputs.
Notes:
- 1.Refer to the table “Power Supply
Inputs” in the Electrical Characteristics section of the SAMA7G5 Series data
sheet for a supply rail list.
- 2.When counting the power consumed
in a power supply, care should be taken to subtract any power transmitted to an
external component that does not contribute to the “on-die” dissipation.