a count of all of the component leads (or pins)
A port is identified for each transport protocol and address combination by a 16-bit unsigned number,.
Word "size" refers to the amount of data a CPU's internal data registers can hold and process at one time.
Supply current refers to the input current to an LDO regulator at no load, which flows inside the IC in order to operate. The power consumption of an LDO regulator can be calculated as. (Input Voltage) x (Consumption current of IC itself) + (Input Voltage - Output Voltage) x (Load current)