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Motore di ricerca datesheet componenti elettronici |
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L99DZ320 Scheda tecnica(PDF) 11 Page - STMicroelectronics |
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L99DZ320 Scheda tecnica(HTML) 11 Page - STMicroelectronics |
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11 / 146 page  Figure 3. LQFP64 printed circuit board Note: Layout condition for thermal characterization: board finishing thickness 1.5 mm ±10%, board four layers, board dimension 77 mm x 114 mm, board material FR4, Cu thickness 0.070 mm for outer layers, 0.0035 mm for inner layers, thermal vias separation 1.2 mm. 2.4 Electrical characteristics For an efficient and easy tracking, numbering has been added to each electrical parameter. Device features are split into categories (see Table 3. ESD protection, Table 4. Operation junction temperature and Table 5. Temperature warning and thermal shutdown) and each of them is represented by a letter (such as A, B, C); all parameters are completely identified by a letter and a three-digit number (for example B.125, C.096) for their whole lifetime. New inserted parameters continue with the numbering of the related category, no matter of where they are placed. To facilitate insertion, the last number inserted for each category is also reported in the second column of the table. Table 6. Electrical parameters numbering Category Parameters numbering Last Inserted Analog I/O A.xxx Digital I/O B.xxx B.034 Voltage regulators C.xxx C.057 Outputs D.xxx D.137 Transceivers E.xxx E.124 Others F.xxx F.030 Due to these rules and taking into account that deleted parameter numbers are no more reassigned, numbering inside each category may not be sequential. L99DZ320 Electrical specifications DS14235 - Rev 5 page 11/146 |
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