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NT5TU64M8EE Datasheet(PDF) 65 Page - Nanya Technology Corporation. |
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NT5TU64M8EE Datasheet(HTML) 65 Page - Nanya Technology Corporation. |
65 / 96 page DDR2 512Mb SDRAM NT5TU64M8EE / NT5TU32M16EG 65 Version 1.0 Nanya Technology Corp.© 09/2014 All Rights Reserved Input/output capacitance Parameter Symbol DDR2-800 DDR2-667 Units Min Max Min Max Input capacitance, CK and CK CCK 1.0 2.0 1.0 2.0 pF Input capacitance delta, CK and CK CDCK x 0.25 x 0.25 pF Input capacitance, all other input-only pins CI 1.0 1.75 1.0 2.0 pF Input capacitance delta, all other input-only pins CDI x 0.25 x 0.25 pF Input/output capacitance, DQ, DM, DQS, DQS CIO 2.5 3.5 2.5 3.5 pF Input/output capacitance delta, DQ, DM, DQS, DQS CDIO x 0.5 x 0.5 pF Refresh parameters Parameter Symbol 512Mb Unit Notes Refresh to active/Refresh command time tRFC 105 ns 1 Average periodic Refresh interval tREFI - 40℃≦Tcase≦85℃ 7.8 μs 1 85℃≦Tcase≦95℃ 3.9 1,2,3 NOTE 1 If refresh timing is violated, data corruption may occur and the data must be re-written with valid data before a valid READ can be executed. NOTE 2 This is an additional feature. For detailed information, please refer to “operating temperature condition” chapter in this spec NOTE 3 When TC exceeds 85°C, the DRAM must be refreshed externally at 2x refresh. It is required to set tREFI=3.9μs in auto refresh mode and to set ‘1’ for EMRS (2) bit A7 in self refresh mode. |
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