Technical information

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2.4 Recommended Dimensions for User System Mount Pad (Footprint)
Figure 6 shows the recommended dimensions for the mount pad (footprint) for the user system
with an IC socket for an FP-256H package (TQPACK256RD: manufactured by Tokyo Eletech
Corporation). Note that the dimensions in figure 6 are somewhat different from those of the actual
chip's mount pad.
Unit: mm
0.50 ± 0.05
0.25
0.50 x 51 = 25.50 ± 0.1
0.5 x 75 = 37.50 ± 0.1
26.20 max
30.20 min
38.2 max 42.2 min
0.50 ± 0.05
+ 0.1
- 0.05
Figure 6 Recommended Dimensions for Mount Pad