K4T1G084QD SAMSUNG [Samsung semiconductor], K4T1G084QD Datasheet - Page 25

• Manufacturer Part Number: K4T1G084QD
• Description: 1Gb D-die DDR2 SDRAM Specification
• Manufacturer: SAMSUNG [Samsung semiconductor]

K4T1G084QD
K4T1G164QD
18. tIS and tIH (input setup and hold) derating.
For all input signals the total tIS (setup time) and tIH(hold time) required is calculated by adding the datasheet tIS(base) and tIH(base) value to the delta
tIS and delta tIH derating value respectively. Example: tIS(total setup time)= tIS(base) + delta tIS.
Address Slew
Address Slew
Command/
Command/
rate(V/ns)
rate(V/ns)
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
-11
-25
-43
-67
-13
-22
-34
-60
-5
0
0
2.0 V/ns
2.0 V/ns
∆tIS and ∆tIH Derating Values for DDR2-667, DDR2-800
∆tIS, ∆tIH Derating Values for DDR2-400, DDR2-533
-1125
∆tIH
-125
-188
-292
-375
-500
-708
∆tIH
-125
-188
-292
-375
-500
-708
+94
+89
+83
+75
+45
+21
+94
+89
+83
+75
+45
+21
-14
-31
-54
-83
-14
-31
-54
-83
0
0
+217
+209
+197
+180
+155
+113
+180
+173
+163
+150
+130
-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
23 of 29
1.5 V/ns
1.5 V/ns
CK, CK Differential Slew Rate
CK, CK Differential Slew Rate
-1095
+124
+119
+113
+105
+124
+119
+113
+105
∆tIH
-158
-262
-345
-470
-678
∆tIH
-158
-262
-345
-470
-678
+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
∆tIS
-115
-225
-290
-465
-740
∆tIS
-108
-140
-265
-457
-940
+60
+49
+35
+17
+60
+55
+47
+38
+26
-50
-40
-7
0
1.0 V/ns
1.0 V/ns
-1065
+154
+149
+143
+135
+105
+154
+149
+143
+135
+105
-128
-232
-315
-440
-648
-128
-232
-315
-440
-648
∆tIH
∆tIH
+81
+60
+46
+29
+81
+60
+46
+29
-23
-65
-23
-65
+6
+6
Rev. 1.0 March 2007
DDR2 SDRAM
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