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STPCI2GDY Datasheet(PDF) 96 Page - STMicroelectronics |
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STPCI2GDY Datasheet(HTML) 96 Page - STMicroelectronics |
96 / 111 page ![]() DESIGN GUIDELINES 96/111 Issue 1.0 - July 24, 2002 Figure 6-25. IBIS Simulation for on-board SDRAM / 90MHz Figure 6-26. Recommended topology for DIMM (IBIS model) 0.8 V 2.0 V 833ps 791ps 3 2 1 MCLKI MCLKx (V) MCLKI Time MCLKI 22 Ohms 3000 mils Track impedance= 75 Ohms Trace thickness = 0.72 mil Trace width = 4 to 8 mils Buffer out 18 Ohms 2000 mils DIMM Buffer out |