11
2.4 Recommended Dimensions for the User System Mounting Pad (Footprint)

Figure 6 shows the recommended dimensions for the mounting pad (footprint) for the user system

with the IC socket for a PLQP0144KA-A package (NQPACK144SD-ND: manufactured by Tokyo

Eletech Corporation). Note that the dimensions in figure 6 are somewhat different from those of

the mounting pad for the system with the actual MCU.

0.50 0.25 (max.)

11.50

23.00

23.00

2.00

11.50
0.50
Unit: mm
Dimension and tolerance
Tolerance
±0.05
±0.10
±0.15
±0.20
±0.30
Dimension
Up to 1.2
1.3 to 2.0
2.1 to 5.0
5.1 to 10.0
10.1 or above

Figure 6 Recommended Dimensions for the Mounting Pad