Datasheet

DS9716 Rev 11 129/139
STM32F401xB STM32F401xC Package information
132
Figure 60. UFBGA100 - 100-ball, 7 x 7 mm, 0.50 mm pitch, ultra fine pitch ball grid
array
package recommended footprint
ddd - - 0.080 - - 0.0031
eee - - 0.150 - - 0.0059
fff - - 0.050 - - 0.0020
1. Values in inches are converted from mm and rounded to 4 decimal digits.
Table 85. UFBGA100 recommended PCB design rules (0.5 mm pitch BGA)
Dimension Recommended values
Pitch 0.5
Dpad 0.280 mm
Dsm
0.370 mm typ. (depends on the solder mask
registration tolerance)
Stencil opening 0.280 mm
Stencil thickness Between 0.100 mm and 0.125 mm
Table 84. UFBGA100 - 100-ball, 7 x 7 mm, 0.50 mm pitch, ultra fine pitch ball grid array
package mechanical data (continued)
Symbol
millimeters inches
(1)
Min. Typ. Max. Min. Typ. Max.
$&B)3B9
'SDG
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