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EP1C20F400C8 Datasheet(PDF) 70 Page - Altera Corporation |
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EP1C20F400C8 Datasheet(HTML) 70 Page - Altera Corporation |
70 / 94 page 70 Altera Corporation Cyclone FPGA Family Data Sheet Preliminary Information Table 29. 1.8-V I/O Specifications Symbol Parameter Conditions Minimum Maximum Unit VCCIO Output supply voltage 1.65 1.95 V VIH High-level input voltage 0.65 × V CCIO 2.25 V VIL Low-level input voltage –0.3 0.35 × V CCIO V VOH High-level output voltage IOH = –2 to –8 mA (9) VCCIO – 0.45 V VOL Low-level output voltage IOL = 2 to 8 mA (9) 0.45 V Table 30. 1.5-V I/O Specifications Symbol Parameter Conditions Minimum Maximum Unit VCCIO Output supply voltage 1.4 1.6 V VIH High-level input voltage 0.65 × V CCIO VCCIO + 0.3 V VIL Low-level input voltage –0.3 0.35 × V CCIO V VOH High-level output voltage IOH = –2 mA (9) 0.75 × V CCIO V VOL Low-level output voltage IOL = 2 mA (9) 0.25 × V CCIO V Table 31. 2.5-V LVDS I/O Specifications Note (10) Symbol Parameter Conditions Minimum Typical Maximum Unit VCCIO I/O supply voltage 2.375 2.5 2.625 V VOD Differential output voltage RL = 100 Ω 250 550 mV ∆ V OD Change in VOD between high and low RL = 100 Ω 50 mV VOS Output offset voltage RL = 100 Ω 1.125 1.25 1.375 V ∆ V OS Change in VOS between high and low RL = 100 Ω 50 mV VTH Differential input threshold VCM = 1.2 V –100 100 mV VIN Receiver input voltage range 0.0 2.4 V RL Receiver differential input resistor 90 100 110 Ω |
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