K4T1G164QA-ZCD5 Datasheet

  • K4T1G164QA-ZCD5

  • 1Gb A-die DDR2 SDRAM Specification

  • 612.12KB

  • 28页

  • SAMSUNG   SAMSUNG

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1G A-die DDR2 SDRAM
18. tIS and tIH (input setup and hold) derating.
鈭唗IS, 鈭唗IH
Derating Values for DDR2-400, DDR2-533
CK, CK Differential Slew Rate
2.0 V/ns
鈭唗IS
4.0
3.5
3.0
2.5
2.0
1.5
1.0
Command/
Address Slew
rate(V/ns)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.25
0.2
0.15
+187
+179
+167
+150
+125
+83
0
-11
-25
-43
-67
-110
-175
-285
-350
-525
-800
鈭唗IH
+94
+89
+83
+75
+45
+21
0
-14
-31
-54
-83
-125
-188
-292
-375
-500
-708
鈭唗IS
+217
+209
+197
+180
+155
+113
+30
+19
+5
-13
-37
-80
-145
-255
-320
-495
-770
1.5 V/ns
鈭唗IH
+124
+119
+113
+105
+75
+51
+30
+16
-1
-24
-53
-95
-158
-262
-345
-470
-678
鈭唗IS
+247
+239
+227
+210
+185
+143
+60
+49
+35
+17
-7
-50
-115
-225
-290
-465
-740
1.0 V/ns
鈭唗IH
+154
+149
+143
+135
+105
+81
+60
+46
+29
+6
-23
-65
-128
-232
-315
-440
-648
DDR2 SDRAM
Units
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
Notes
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
鈭唗IS
and
鈭唗IH
Derating Values for DDR2-667, DDR2-800
CK, CK Differential Slew Rate
2.0 V/ns
鈭唗IS
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.9
Command/
Address Slew
rate(V/ns)
0.8
0.7
0.6
0.5
0.4
0.3
0.25
0.2
0.15
0.1
+150
+143
+133
+120
+100
+67
0
-5
-13
-22
-34
-60
-100
-168
-200
-325
-517
-1000
鈭唗IH
+94
+89
+83
+75
+45
+21
0
-14
-31
-54
-83
-125
-188
-292
-375
-500
-708
-1125
鈭唗IS
+180
+173
+163
+150
+130
+97
+30
+25
+17
+8
-4
-30
-70
-138
-170
-295
-487
-970
1.5 V/ns
鈭唗IH
+124
+119
+113
+105
+75
+51
+30
+16
-1
-24
-53
-95
-158
-262
-345
-470
-678
-1095
鈭唗IS
+210
+203
+193
+180
+160
+127
+60
+55
+47
+38
+26
0
-40
-108
-140
-265
-457
-940
1.0 V/ns
鈭唗IH
+154
+149
+143
+135
+105
+81
+60
+46
+29
+6
-23
-65
-128
-232
-315
-440
-648
-1065
Units
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
Notes
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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.
Page 24 of 28
Rev. 1.1 Aug. 2005

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