Package information
STM32L151x6/8/B STM32L152x6/8/B
Table 67. UFBGA100 7 x 7 mm, 0.5 mm pitch, package mechanical data (continued)
Symbol
millimeters
Min
Typ
Max
inches(1)
Min
Typ
Max
eee
-
fff
-
-
0.15
-
-
0.05
-
-
0.0059
-
0.002
1. Values in inches are converted from mm and rounded to 4 decimal digits.
Figure 45. UFBGA100 7 x 7 mm, 0.5 mm pitch, package recommended footprint
'SDG
'VP
$&B)3B9
Table 68. UFBGA100 7 x 7 mm, 0.5 mm pitch, recommended PCB design rules
Dimension
Recommended values
Pitch
0.5
Dpad
0.280 mm
Dsm
0.370 mm typ. (depends on the soldermask
registration tolerance)
Stencil opening
0.280 mm
Stencil thickness
Between 0.100 mm and 0.125 mm
118/133
DocID17659 Rev 12