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ICS950508 Datenblatt(PDF) 13 Page - Integrated Circuit Systems |
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ICS950508 Datenblatt(HTML) 13 Page - Integrated Circuit Systems |
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13 / 19 page ![]() 13 Integrated Circuit Systems, Inc. ICS950508 0470E—04/06/05 Electrical Characteristics - SDRAM TA = 0 - 70°C; VDD = 3.3 V +/-5%, CL = 20 - 30 pF (unless otherwise stated) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Output Impedance 1 RDSP3 Vo=VDD*(0.5) 10 24 Ω Output Impedance 1 RDSN3 Vo=VDD*(0.5) 10 24 Ω Output High Voltage VOH3 IOH = -1 mA 2.4 V Output Low Voltage VOL3 IOL = 1 mA 0.4 V VOH@MIN = 2 V -46 VOH@MAX = 3.135V -54 VOL@MIN = 1 V 54 VOL@MAX =0.4V 53 Rise Time 1 tr3 VOL = 0.4 V, VOH = 2.4 V 0.4 1.2 1.6 ns Fall Time 1 tf3 VOH = 2.4 V, VOL = 0.4 V 0.4 0.9 1.6 ns Duty Cycle 1 dt3 VT = 1.5 V 45 50 55 % Skew 1 tsk3 VT = 1.5 V 218 250 ps Jitter, cycle-to-cycle 1 tjcyc-cyc3 VT = 1.5 V 225 250 ps 1Guaranteed by design, not 100% tested in production. Output High Current IOH3 mA Output Low Current IOL3 mA Electrical Characteristics - 3V66 TA = 0 - 70°C; VDD = 3.3 V +/-5%; CL = 10-30 pF (unless otherwise specified) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Output Impedance 1 RDSP1 VO = VDD*(0.5) 12 55 Ω Output Impedance 1 RDSN1 VO = VDD*(0.5) 12 55 Ω Output High Voltage VOH1 IOH = -1 mA 2.4 V Output Low Voltage VOL1 IOL = 1 mA 0.55 V VOH @ MIN = 1.0 V -33 VOH @ MAX = 3.135 V -33 VOL @ MIN = 1.95 V 30 VOL @ MAX = 0.4 V 38 Rise Time 1 tr1 VOL = 0.4 V, VOH = 2.4 V 0.4 1.55 2 ns Fall Time 1 tf1 VOH = 2.4 V, VOL = 0.4 V 0.4 1.65 2 ns Duty Cycle 1 dt1 VT = 1.5 V 45 53 55 % Skew 1 tsk1 VT = 1.5 V 94 175 ps Jitter, Cycle-to-cycle 1 tjcyc-cyc1 VT = 1.5 V 350 500 ps 1Guaranteed by design, not 100% tested in production. Output High Current IOH1 mA Output Low Current IOL1 mA |
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