Datasheet

ManualsBrandsST ManualsEmbedded Processors & ControllersMicrocontroller 32bit 2MB TFBGA
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DocID024030 Rev 10 221/239
STM32F427xx STM32F429xx Package information
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Figure 99. UFBGA176+25-ball, 10 x 10 mm, 0.65 mm pitch, ultra fine pitch 
ball grid array package recommended footprint
 
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 119. UFBGA176+25 recommended PCB design rules (0.65 mm pitch BGA)
Dimension Recommended values
Pitch 0.65 mm
Dpad 0.300 mm
Dsm
0.400 mm typ. (depends on the soldermask 
registration tolerance)
Stencil opening 0.300 mm
Stencil thickness Between 0.100 mm and 0.125 mm
Pad trace width 0.100 mm
Table 118. UFBGA176+25 - ball, 10 x 10 mm, 0.65 mm pitch, 
ultra fine pitch ball grid array package mechanical data (continued)
Symbol
millimeters inches
(1)
Min. Typ. Max. Min. Typ. Max.
Ϭϳͺ&Wͺsϭ
'SDG
'VP
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