K4T1G084QD Datasheet, PDF (24/27 Pages) Samsung semiconductor – 1Gb D-die DDR2 SDRAM Specification

K4T1G084QD
K4T1G164QD
DDR2 SDRAM
∆tDS1, ∆tDH1 Derating Values for DDR2-400, DDR2-533(All units in ‘ps’; the note applies to the entire table)
DQS Single-ended Slew Rate
2.0 V/ns
1.5 V/ns
1.0 V/ns
0.9 V/ns
0.8 V/ns
0.7 V/ns
0.6 V/ns
0.5 V/ns
0.4 V/ns
∆tDS ∆tDH ∆tDS ∆tDH ∆tDS ∆tDH ∆tDS ∆tDH ∆tDS ∆tDH ∆tDS ∆tDH ∆tDS ∆tDH ∆tDS ∆tDH ∆tDS ∆tDH
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2.0 188 188 167 146 125 63
-
-
-
-
-
-
-
-
-
-
-
-
1.5 146 167 125 125 83 42 81 43
-
-
-
-
-
-
-
-
-
-
1.0 63 125 42 83 0
0
-2
1
-7 -13 -
-
-
-
-
-
-
-
DQ 0.9 -
-
31 69 -11 -14 -13 -13 -18 -27 -29 -45
-
-
-
-
-
-
Slew
rate
0.8
-
-
-
- -25 -31 -27 -30 -32 -44 -43 -62 -60 -86 -
-
-
-
V/ns ^{0.7 -}
-
-
-
-
- -45 -53 -50 -67 -61 -85 -78 -109 -108 -152 -
-
0.6 -
-
-
-
-
-
-
- -74 -96 -85 -114 -102 -138 -138 -181 -183 -246
0.5 -
-
-
-
-
-
-
-
-
- -128 -156 -145 -180 -175 -223 -226 -288
0.4 -
-
-
-
-
-
-
-
-
-
-
- -210 -243 -240 -286 -291 -351
For all input signals the total tDS (setup time) and tDH (hold time) required is calculated by adding the data sheet tDS(base) and tDH(base) value to the
∆tDS and ∆tDH derating value respectively. Example: tDS (total setup time) = tDS(base) + ∆tDS.
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Rev. 1.0 March 2007