18 | Integrated Circuits
Integrated circuits (ICs) are just circuits pre-wired on a silicon chip. They can come in a lot of shapes and sizes, but the ones used here are almost all in DIL (dual in-line) packages, Figure 18.1b. The name refers to the fact that there are two rows of legs for making connections. This is a through hole format; the legs are designed to be inserted through holes on the circuit board and be soldered on the other side, as opposed to surface mount packages which are also common, but which are not discussed here. Related commonly seen abbreviations for the same package style are of the form DIP8 and DIP14. The DIP stands for dual in-line package, ...
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