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STM32L452VCU6 Scheda tecnica(PDF) 197 Page - STMicroelectronics |
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STM32L452VCU6 Scheda tecnica(HTML) 197 Page - STMicroelectronics |
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197 / 210 page ![]() DocID029968 Rev 3 197/10 STM32L452xx Package information 207 Figure 50. UFBGA64 – 64-ball, 5 x 5 mm, 0.5 mm pitch ultra profile fine pitch ball grid array package recommended footprint Device marking The following figure gives an example of topside marking orientation versus ball A1 identifier location. Other optional marking or inset/upset marks, which identify the parts throughout supply chain operations, are not indicated below. F 0.700 0.750 0.800 0.0276 0.0295 0.0315 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 105. UFBGA64 – 64-ball, 5 x 5 mm, 0.5 mm pitch ultra profile fine pitch ball grid array package mechanical data (continued) Symbol millimeters inches(1) Min Typ Max Min Typ Max A 0.460 0.530 0.600 0.0181 0.0209 0.0236 Table 106. UFBGA64 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 soldermask registration tolerance) Stencil opening 0.280 mm Stencil thickness Between 0.100 mm and 0.125 mm Pad trace width 0.100 mm |
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