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PCIMX536AVV8B Datasheet(PDF) 36 Page - Freescale Semiconductor, Inc |
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PCIMX536AVV8B Datasheet(HTML) 36 Page - Freescale Semiconductor, Inc |
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36 / 180 page ![]() i.MX53xA Automotive and Infotainment Applications Processors, Rev. 1 36 Freescale Semiconductor Electrical Characteristics 4.4.1 GPIO Output Buffer Impedance Table 17 shows the GPIO output buffer impedance. 4.4.2 LPDDR2 I/O Output Buffer Impedance The DDR2/LVDDR2 interface fully complies with JESD79-2E DDR2 JEDEC standard release April, 2008. The DDR3 interface fully complies with JESD79-3D DDR3 JEDEC standard release April, 2008. 4.4.3 xAUHVIO Output Buffer Impedance Table 18 shows the UHVIO output buffer impedance. 4.4.4 LVDS I/O Output Buffer Impedance The LVDS interface complies with TIA/EIA 644-A standard. See, TIA/EIA STANDARD 644-A, “Electrical Characteristics of Low Voltage Differential Signaling (LVDS) Interface Circuits” for details. 4.5 I/O AC Parameters This section includes the AC parameters of the following I/O types: • General Purpose I/O (GPIO) • Double Data Rate 3 I/O (DDR3) for DDR2/LVDDR2, LPDDR2 and DDR3 modes Table 17. GPIO Output Buffer Impedance Parameter Symbol Test Conditions Min Typ Max Unit OVDD 2.775 V OVDD 1.875 V Output Driver Impedance Rpu Low Drive Strength, Ztl = 150 Ω Medium Drive Strength, Ztl = 75 Ω High Drive Strength, Ztl = 50 Ω Max Drive Strength, Ztl = 37.5 Ω 80 40 27 20 104 52 35 26 150 75 51 38 250 125 83 62 Ω Output Driver Impedance Rpd Low Drive Strength, Ztl = 150 Ω Medium Drive Strength, Ztl = 75 Ω High Drive Strength, Ztl = 50 Ω Max Drive Strength, Ztl = 37.5 Ω 64 32 21 16 88 44 30 22 134 66 44 34 243 122 81 61 Ω Table 18. UHVIO Output Buffer Impedance Parameter Symbol Test Conditions Min Typ Max Unit OVDD 1.95 V OVDD 3.0 V OVDD 1.875 V OVDD 3.3 V OVDD 1.65 V OVDD 3.6 V Output Driver Impedance Rpu Low Drive Strength, Ztl = 150 Ω Medium Drive Strength, Ztl = 75 Ω High Drive Strength, Ztl = 50 Ω 98 49 32 114 57 38 124 62 41 135 67 45 198 99 66 206 103 69 Ω Output Driver Impedance Rpd Low Drive Strength, Ztl = 150 Ω Medium Drive Strength, Ztl = 75 Ω High Drive Strength, Ztl = 50 Ω 97 49 32 118 59 40 126 63 42 154 77 51 179 89 60 217 109 72 Ω |
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