K4T1G044QF Datasheet, PDF (35/46 Pages) Samsung semiconductor – 1Gb F-die DDR2 SDRAM

K4T1G044QF
K4T1G084QF
K4T1G164QF
datasheet
Rev. 1.11
DDR2 SDRAM
9. tIS and tIH (input setup and hold) derating
[ Table 4 ] Derating values for DDR2-400, DDR2-533
∆tIS, ∆tIH Derating Values for DDR2-400, DDR2-533
CK, CK Differential Slew Rate
2.0 V/ns
1.5 V/ns
1.0 V/ns
∆tIS
∆tIH
∆tIS
∆tIH
∆tIS
∆tIH
4.0
+187
+94
+217
+124
+247
+154
3.5
+179
+89
+209
+119
+239
+149
3.0
+167
+83
+197
+113
+227
+143
2.5
+150
+75
+180
+105
+210
+135
2.0
+125
+45
+155
+75
+185
+105
1.5
+83
+21
+113
+51
+143
+81
1.0
0.9
Command/
0.8
Address Slew
rate(V/ns)
0.7
0.6
0.5
0.4
0.3
0.25
0.2
0.15
0
-11
-25
-43
-67
-110
-175
-285
-350
-525
-800
0
-14
-31
-54
-83
-125
-188
-292
-375
-500
-708
+30
+19
+5
-13
-37
-80
-145
-255
-320
-495
-770
+30
+16
-1
-24
-53
-95
-158
-262
-345
-470
-678
+60
+49
+35
+17
-7
-50
-115
-225
-290
-465
-740
+60
+46
+29
+6
-23
-65
-128
-232
-315
-440
-648
0.1
-1450
-1125
-1420
-1095
-1390
-1065
Units
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
NOTE
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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