4.5 Power Dissipation
The power level of some chips has approached 100 watts these days and power dissipation is a major design consideration. The basic power equation is
where I is the current flowing from VDD to ground. The power dissipation of a logic gate can be categorized into static and dynamic power. The static power involves power dissipation when the gate is not switching and the dynamic power involves the power dissipation during switching. So
