EDE1104ACSE, EDE1108ACSE, EDE1116ACSE
[Derating Values of tIS/tIH (DDR2-667, DDR2-800)]
CK, /CK Differential Slew Rate
2.0 V/ns
∆tIS
1.5 V/ns
1.0 V/ns
∆tIS
∆tIH
+94
+89
+83
+75
+45
+21
0
∆tIS
+180
+173
+163
+150
+130
+97
∆tIH
+124
+119
+113
+105
+75
∆tIH
+154
+149
+143
+135
+105
+81
Unit Notes
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
0.25
0.2
0.15
0.1
+150
+143
+133
+120
+100
+67
+210
+203
+193
+180
+160
+127
+60
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
+51
0
+30
+30
+60
−5
−14
+25
+16
+55
+46
−13
−31
+17
−1
+47
+29
Command/address
slew rate (V/ns)
−22
−54
+8
−24
+38
+6
−34
−83
−4
−53
+26
−23
−60
−125
−188
−292
−375
−500
−708
−1125
−30
−95
0
−65
−100
−168
−200
−325
−517
−1000
−70
−158
−262
−345
−470
−678
−1095
−40
−128
−232
−315
−440
−648
−1065
−138
−170
−295
−487
−970
−108
−140
−265
−457
−940
Data Sheet E0975E50 (Ver.5.0)
26
ELPIDA [ ELPIDA MEMORY ]
