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IO20PDB0V0 датащи(PDF) 38 Page - Microsemi Corporation |
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IO20PDB0V0 датащи(HTML) 38 Page - Microsemi Corporation |
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38 / 197 page ![]() SmartFusion DC and Switching Characteristics 2- 26 R e v i sio n 1 2 Detailed I/O DC Characteristics Table 2-26 • Input Capacitance Symbol Definition Conditions Min. Max. Units CIN Input capacitance VIN = 0, f = 1.0 MHz 8 pF CINCLK Input capacitance on the clock pin VIN = 0, f = 1.0 MHz 8 pF Table 2-27 • I/O Output Buffer Maximum Resistances1 Applicable to FPGA I/O Banks Standard Drive Strength RPULL-DOWN ( Ω)2 RPULL-UP ( Ω)3 3.3 V LVTTL / 3.3 V LVCMOS 2 mA 100 300 4 mA 100 300 6 mA 50 150 8 mA 50 150 12 mA 25 75 16 mA 17 50 24 mA 11 33 2.5 V LVCMOS 2 mA 100 200 4 mA 100 200 6 mA 50 100 8 mA 50 100 12 mA 25 50 16 mA 20 40 24 mA 11 22 1.8 V LVCMOS 2 mA 200 225 4 mA 100 112 6 mA 50 56 8 mA 50 56 12 mA 20 22 16 mA 20 22 1.5 V LVCMOS 2 mA 200 224 4 mA 100 112 6 mA 67 75 8 mA 33 37 12 mA 33 37 3.3 V PCI/PCI-X Per PCI/PCI-X specification 25 75 Notes: 1. These maximum values are provided for information only. Minimum output buffer resistance values depend on VCCxxxxIOBx, drive strength selection, temperature, and process. For board design considerations and detailed output buffer resistances, use the corresponding IBIS models located on the Microsemi SoC Products Group website (also generated by the SoC Products Group Libero SoC toolset). 2. R(PULL-DOWN-MAX) = (VOLspec) / IOLspec 3. R(PULL-UP-MAX) = (VCCImax – VOHspec) / IOHspec |
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