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SM843256KA 数据表(PDF) 3 Page - Micrel Semiconductor |
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SM843256KA 数据表(HTML) 3 Page - Micrel Semiconductor |
3 / 8 page Micrel, Inc. SM843256 July 2010 3 M9999-072110-B Pin Description Pin Number Pin Name Pin Type Pin Level Pin Function 1, 2 VDDO PWR 2.5V or 3.3V Power Supply 3, 4 /Q2, Q2 O, (DIF) LVPECL Differential Clock Output 5, 6 /Q1, Q1 O, (DIF) LVPECL Differential Clock Output 7, 8 /Q0, Q0 O, (DIF) LVPECL Differential Clock Output 9 PLL_BYPASS I, (SE) LVCMOS Pull-Up 45k, Single-Ended Input Select Pin. Logic (0) = PLL Output Logic (1) = Xtal Reference 10 VDDA PWR Analog 3.3V or 2.5V Power Supply 11 VDD PWR 3.3V or 2.5V Power Supply 12 FB_SEL I, (SE) LVCMOS Pull-Down 45k, Single-Ended Input Select Pin 13 XTAL_IN I, (SE) 12pF crystal Crystal Reference Input, no load caps needed. 14 XTAL_OUT O, (SE) 12pF crystal Crystal Reference Output, no load caps needed. 15 N_SEL0 I, (SE) LVCMOS Pull-Up 45k, Single-Ended Input Select Pin 16, 17 GND PWR Ground 18 N_SEL1 I, (SE) LVCMOS Pull-Up 45k, Single-Ended Input Select Pin 19, 20 /Q5, Q5 O, (DIF) LVPECL Differential Clock Output 21, 22 /Q4, Q4 O, (DIF) LVPECL Differential Clock Output 23, 24 /Q3, Q3 O, (DIF) LVPECL Differential Clock Output Input and Output Frequency Table XTAL (MHz) FB_SEL N_SEL1 N_SEL0 Outputs (MHz) Application 24 0 0 0 600 - 24 0 0 1 300 - 24 0 1 0 150 SAS/SATA 24 0 1 1 120 - 25 0 0 0 625 10 Gigabit Ethernet 25 0 0 1 312.50 10 Gigabit Ethernet 25 0 1 0 156.25 10 Gigabit Ethernet 25 0 1 1 125 Gigabit Ethernet/Infiniband/PCI/PCI-E/PCI-X 18.75 1 0 0 600 - 18.75 1 0 1 300 - 18.75 1 1 0 150 SAS/SATA 18.75 1 1 1 75 SAS/SATA 19.44 1 0 0 622.08 10 Gigabit Ethernet/SONET 19.44 1 0 1 311.04 SONET 19.44 1 1 0 155.52 SONET 19.44 1 1 1 77.76 SONET 19.53125 1 0 0 625 10 Gigabit Ethernet 19.53125 1 0 1 312.5 10 Gigabit Ethernet 19.53125 1 1 0 156.25 10 Gigabit Ethernet 19.53125 1 1 1 78.125 10 Gigabit Ethernet |
类似零件编号 - SM843256KA |
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类似说明 - SM843256KA |
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