k4t51043qc-zle7 Samsung Semiconductor, Inc., k4t51043qc-zle7 Datasheet - Page 25

• Manufacturer Part Number: k4t51043qc-zle7
• Description: 512mb C-die Ddr2 Sdram
• Manufacturer: Samsung Semiconductor, Inc.

18. tIS and tIH (input setup and hold) derating.
512Mb C-die DDR2 SDRAM
Command/Ad-
Command/Ad-
dress Slew
dress Slew
(V/ns)
(V/ns)
rate
rate
0.25
0.15
0.25
0.15
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
-1000
+187
+179
+167
+150
+125
+150
+143
+133
+120
+100
-110
-175
-285
-350
-525
-800
-100
-168
-200
-325
-517
'tIS
'tIS
+83
+67
-25
-43
-67
-13
-22
-34
-60
-11
-5
0
0
2.0 V/ns
2.0 V/ns
'tIS and 'tIH Derating Values for DDR2-667, DDR2-800
-1125
-125
-188
-292
-500
-708
-125
-188
-292
-500
-708
'tIH
'tIH
+94
+89
+83
+75
+45
+21
-375
+94
+89
+83
+75
+45
+21
-375
-14
-31
-54
-83
-14
-31
-54
-83
tIS, tIH Derating Values for DDR2-400, DDR2-533
0
0
CK,CK Differential Slew Rate
CK,CK Differential Slew Rate
+217
+209
+197
+180
+155
+180
+173
+163
+150
+130
+113
-145
-255
-320
-495
-770
-138
-170
-295
-487
-970
'tIS
'tIS
+30
+19
+97
+30
+25
+17
-13
-37
-80
-30
-70
+5
+8
-4
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1.5 V/ns
1.5 V/ns
-1095
+124
+119
+113
+105
+124
+119
+113
+105
-158
-262
-345
-470
-678
'tIH
-158
-262
-345
-470
-678
'tIH
+75
+51
+30
+16
+75
+51
+30
+16
-24
-53
-95
-24
-53
-95
-1
-1
+247
+239
+227
+210
+185
+143
+210
+203
+193
+180
+160
+127
-115
-225
-290
-465
-740
-108
-140
-265
-457
-940
'tIS
'tIS
+60
+49
+35
+17
+60
+55
+47
+38
+26
-40
-50
-7
0
1.0 V/ns
1.0 V/ns
-1065
+154
+149
+143
+135
+105
+154
+149
+143
+135
+105
'tIH
-128
-232
-315
-440
-648
'tIH
-128
-232
-315
-440
-648
+81
+60
+46
+29
+81
+46
+29
-23
-65
-23
-65
60
+6
+6
DDR2 SDRAM
Rev. 1.4 Aug. 2005
Units
Units
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
Notes
Notes
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1