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OR2C04A 데이터시트(PDF) 128 Page - List of Unclassifed Manufacturers |
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OR2C04A 데이터시트(HTML) 128 Page - List of Unclassifed Manufacturers |
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128 / 192 page ![]() Data Sheet ORCA Series 2 FPGAs June 1999 128 Lucent Technologies Inc. Package Parasitics (continued) These parameters are important in determining ground bounce noise and inductive crosstalk noise. Three capaci- tances in pF are listed: CM, the mutual capacitance of the lead to the nearest neighbor lead; and C1 and C2, the total capacitance of the lead to all other leads (all other leads are assumed to be grounded). These parameters are important in determining capacitive crosstalk and the capacitive loading effect of the lead. The parasitic values in Table 30 are for the circuit model of bond wire and package lead parasitics. If the mutual capacitance value is not used in the designer’s model, then the value listed as mutual capacitance should be added to each of the C1 and C2 capacitors. 5-3862(F).r2 Figure 53. Package Parasitics Table 30. Series 2 Package Parasitics Package Type LSW LMW RW C1 C2 CM LSL LML 84-Pin PLCC 3 1 140 1 1 0.5 7—11 3—6 100-Pin TQFP 3 1 150 0.5 0.5 0.4 4—6 2—3 144-Pin TQFP 3 1 140 1 1 0.6 4—6 2—2.5 160-Pin QFP 4 1.5 180 1.5 1.5 1 10—13 6—8 208-Pin SQFP 4 2 200 1 1 1 7—10 4—6 208-Pin SQFP2 4 2 200 1 1 1 6—9 4—6 240-Pin SQFP 4 2 200 1 1 1 8—12 5—8 240-Pin SQFP2 4 2 200 1 1 1 7—11 4—7 256-Pin PBGA 5 2 220 1 1 1 5—8 2—4 304-Pin SQFP 5 2 220 1 1 1 12—18 7—12 304-Pin SQFP2 5 2 220 1 1 1 11—17 7—12 352-Pin PBGA 5 2 220 1.5 1.5 1.5 7—12 3—6 432-Pin EBGA 4 1.5 500 1 1 0.3 3—5.5 0.5—1 PAD N CIRCUIT BOARD PAD CM C1 LW RW LL LMW C2 C1 LML C2 PAD N + 1 LW RW LL |
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