Page 75 - Make Your Own PCBs with EAGLE from Schematic Designs to Finished Boards

FIGURE 3-9 Package options for an ATTiny45 IC.

Through-Hole ICs (DIL)

Figure 3-9 shows a couple of DIL IC packages. These can have up to 40 pins, and the most common
sizes are 8, 14, 16, 20, 24, 28, and 40 pins. Most have a gap of 0.3 in. between the two rows of pins,
but some of the bigger devices have a 0.6-in. gap.

SMD ICs

There are a few major styles of SMD IC packages, as summarized in Table 3-7. All these packages
have leads protruding from the side of the IC.

TABLE 3-7 SMD IC Package Types