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M14D128168A-2M Datasheet(PDF) 8 Page - Elite Semiconductor Memory Technology Inc. |
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M14D128168A-2M Datasheet(HTML) 8 Page - Elite Semiconductor Memory Technology Inc. |
8 / 59 page ESMT M14D128168A (2M) Elite Semiconductor Memory Technology Inc. Publication Date : Mar. 2013 Revision : 1.4 8/59 AC Operation Conditions & Timing Specification AC Operation Conditions -1.8 -2.5 Parameter Symbol Min. Max. Min. Max. Unit Note Input High (Logic 1) Voltage VIH(AC) VREF + 0.2 VREF + 0.2 V Input Low (Logic 0) Voltage VIL(AC) VREF - 0.2 VREF - 0.2 V Input Differential Voltage VID(AC) 0.5 VDDQ + 0.6 0.5 VDDQ V 1 Input Crossing Point Voltage VIX(AC) 0.5 x VDDQ - 0.175 0.5 x VDDQ + 0.175 0.5 x VDDQ - 0.175 0.5 x VDDQ + 0.175 V 2 Output Crossing Point Voltage VOX(AC) 0.5 x VDDQ - 0.125 0.5 x VDDQ + 0.125 0.5 x VDDQ - 0.125 0.5 x VDDQ + 0.125 V 2 Note: 1. VID(AC) specifies the input differential voltage |VTR – VCP| required for switching, where VTR is the true input signal (such as CLK,DQS) and VCP is the complementary input signal (such as CLK , DQS ). The minimum value is equal to VIH(AC) – VIL(AC). 2. The typical value of VIX / VOX(AC) is expected to be about 0.5 x VDDQ of the transmitting device and VIX / VOX(AC) is expected to track variations in VDDQ. VIX / VOX(AC) indicates the voltage at which differential input / output signals must cross. Input / Output Capacitance Parameter Symbol Min. Max. Unit Note Input capacitance (A0~A12, BA0~BA1, CKE, CS , RAS , CAS , WE , ODT) CIN1 0.5 1.5 pF 1 Input capacitance (CLK, CLK ) CIN2 0.5 1.0 pF 1 DQS, DQS & Data input/output capacitance CI / O 1.5 3.5 pF 2 Input capacitance (DM) CIN3 0.5 1.5 pF 2 Note: 1. Maximum capacitance delta is 0.25 pF. 2. Maximum capacitance delta is 0.5 pF. |
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