k4t1g084qc Samsung Semiconductor, Inc., k4t1g084qc Datasheet - Page 24

• Manufacturer Part Number: k4t1g084qc
• Description: 1gb C-die Ddr2 Sdram Specification
• Manufacturer: Samsung Semiconductor, Inc.

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.
K4T1G044QC
K4T1G084QC
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
∆tIS
-145
-255
-320
-495
-770
∆tIS
-138
-170
-295
-487
-970
+30
+19
+97
+30
+25
+17
-13
-37
-80
-30
-70
+5
+8
-4
1.5 V/ns
1.5 V/ns
24 of 26
CK, CK Differential Slew Rate
CK, CK Differential Slew Rate
-1095
+124
+119
+113
+105
+124
+119
+113
+105
-158
-262
-345
-470
-678
-158
-262
-345
-470
-678
∆tIH
∆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
-50
-40
-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
+60
+46
+29
-23
-65
-23
-65
+6
+6
DDR2 SDRAM
Rev. 1.1 June 2007
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