↩ 🔵 🔵 🔵 ❪✺₁.❫ Classes of Circuits ○ ❪✺₁.❫ Classes of Semiconductor Devices ○ ❪✺₁.❫ Classes of Integrated Circuits ○ ❪◑❫ Integrated Circuits ○ IC Power-Supply Pin ○꠹