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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

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