![]() |
Electronic Components Datasheet Search |
|
NT5TU64M8EE Datasheet(PDF) 82 Page - Nanya Technology Corporation. |
|
|
NT5TU64M8EE Datasheet(HTML) 82 Page - Nanya Technology Corporation. |
82 / 96 page ![]() DDR2 512Mb SDRAM NT5TU64M8EE / NT5TU32M16EG 82 Version 1.0 Nanya Technology Corp.© 09/2014 All Rights Reserved Specific Note 9 tIS and tIH (input setup and hold) derating tIS/tIH derating with differential data strobe (DDR2-800, DDR2-667) Δ tIS, Δ tIH Derating Values Command Address Slew rate (V/ns) CK, CK Differential Slew Rate Units 2.0 V/ns 1.5 V/ns 1.0 V/ns ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH 4.00 150 94 180 124 210 154 ps 3.50 143 89 173 119 203 149 ps 3.00 133 83 163 113 193 143 ps 2.50 120 75 150 105 180 135 ps 2.00 100 45 130 75 160 105 ps 1.50 67 21 97 51 127 81 ps 1.00 0 0 30 30 60 60 ps 0.90 -5 -14 25 16 55 46 ps 0.80 -13 -31 17 -1 47 29 ps 0.70 -22 -54 8 -24 38 6 ps 0.60 -34 -83 -4 -53 26 -23 ps 0.50 -60 -125 -30 -95 0 -65 ps 0.40 -100 -188 -70 -158 -40 -128 ps 0.30 -168 -292 -138 -262 -108 -232 ps 0.25 -200 -375 -170 -345 -140 -315 ps 0.20 -325 -500 -295 -470 -265 -440 ps 0.15 -517 -708 -487 -678 -457 -648 ps 0.10 -1000 -1125 -970 -1095 -940 -1065 ps For all input signals the total tIS (setup time) and tIH (hold time) required is calculated by adding the data sheet tIS(base) and tIH(base) value to the Δ tIS and Δ tIH derating value respectively. Example: tIS (total setup time) = tIS(base) + Δ tIS Setup (tIS) nominal slew rate for a rising signal is defined as the slew rate between the last crossing of VREF(dc) and the first crossing of Vih(ac)min. Setup (tIS) nominal slew rate for a falling signal is defined as the slew rate between the last crossing of VREF(dc) and the first crossing of Vil(ac)max. If the actual signal is always earlier than the nominal slew rate line between shaded ‘VREF(dc) to ac region’, use nominal slew rate for derating value (see Figure 81). If the actual signal is later than the nominal slew rate line anywhere between shaded ‘VREF(dc) to ac region’, the slew rate of a tangent line to the actual signal from the ac level to dc level is used for derating value. Hold (tIH) nominal slew rate for a rising signal is defined as the slew rate between the last crossing of Vil(dc)max and the first crossing of VREF(dc) or the last crossing of Vih(dc)min and the first crossing of VREF(dc). If the actual signal is always later than the nominal slew rate line between shaded ‘dc to VREF(dc) region’, use nominal slew rate for derating value. If the actual signal is earlier than the nominal slew rate line anywhere between shaded ‘dc to VREF(dc) region’, the slew rate of a tangent line to the actual signal from the dc level to VREF(dc) level is used for derating value. Although for slow slew rates the total setup time might be negative (i.e. a valid input signal will not have reached VIH/IL(ac) at the time of the rising clock transition) a valid input signal is still required to complete the transition and reach VIH/IL(ac). For slew rates in between the values listed, the derating values may obtained by linear interpolation. These values are typically not subject to production test. They are verified by design and characterization. |
Similar Part No. - NT5TU64M8EE |
|
Similar Description - NT5TU64M8EE |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |