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NT5TU64M8EE Datasheet(PDF) 55 Page - Nanya Technology Corporation. |
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NT5TU64M8EE Datasheet(HTML) 55 Page - Nanya Technology Corporation. |
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55 / 96 page  DDR2 512Mb SDRAM NT5TU64M8EE / NT5TU32M16EG 55 Version 1.0 Nanya Technology Corp.© 09/2014 All Rights Reserved Differential input AC logic level Symbol Parameter Min Max Units Notes VID (ac) ac differential input voltage DDR2-667/800 0.5 VDDQ V 1,3 VIX (ac) ac differential crosspoint voltage 0.5 x VDDQ - 0.175 0.5 x VDDQ + 0.175 V 2 NOTE 1 Follow JEDEC 1066 specification (JESD208) NOTE 2 VID(AC) specifies the input differential voltage |VTR -VCP | required for switching, where VTR is the true input signal (such as CK, DQS, LDQS or UDQS) and VCP is the complementary input signal (such as CK, DQS, LDQS or UDQS). The minimum value is equal to VIH(AC) - VIL(AC). NOTE 3 The typical value of VIX(AC) is expected to be about 0.5 x VDDQ of the transmitting device and VIX(AC) is expected to track variations in VDDQ. VIX(AC) indicates the voltage at which differential input signals must cross. NOTE 4 Refer to Overshoot/undershoot specifications for Vpeak value: maximum peak amplitude allowed for overshoot and undershoot. Differential AC output parameters Symbol Parameter Min Max Units Notes VOX (ac) ac differential crosspoint voltage 0.5 x VDDQ - 0.125 0.5 x VDDQ + 0.125 V 1 NOTE 1 The typical value of VOX(AC) is expected to be about 0.5 x VDDQ of the transmitting device and VOX(AC) is expected to track variations in VDDQ . VOX(AC) indicates the voltage at which differential output signals must cross. |
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