Datasheet

Rev. 1.4 May 2009
FBDIMM
DDR2 SDRAM
14 of 42
4.0 Pin Configuration
[ Table 4 ] DDR2 240 Pin FBDIMM Configurations (Front side/Back side)
RFU = Reserved Future Use.
* These pin positions are reserved for forwarded clocks to be used in future module implementations
** These pin positions are reserved for future architecture flexibility
1. The following signals are CRC bits and thus appear out of the normal sequence : PN12/PN12
, SN12/SN12, PN13/PN13, SN13/SN12,
PS9/PS9
, SS9/SS9.
Pin Front Pin Back Pin Front Pin Back Pin Front Pin Back Pin Front Pin Back
1
V
DD
121
V
DD
31 PN3 151 SN3 61 PN9 181 SN9 91 PS9 211 SS9
2
V
DD
122
V
DD
32 PN3 152 SN3 62
V
SS
182
V
SS
92
V
SS
212
V
SS
3
V
DD
123
V
DD
33
V
SS
153
V
SS
63 PN10 183 SN10 93 PS5 213 SS5
4
V
SS
124
V
SS
34 PN4 154 SN4 64 PN10 184 SN10 94 PS5 214 SS5
5
V
DD
125
V
DD
35 PN4 155 SN4 65
V
SS
185
V
SS
95
V
SS
215
V
SS
6
V
DD
126
V
DD
36
V
SS
156
V
SS
66 PN11 186 SN11 96 PS6 216 SS6
7
V
DD
127
V
DD
37 PN5 157 SN5 67 PN11 187 SN11 97 PS6 217 SS6
8
V
SS
128
V
SS
38 PN5 158 SN5 68
V
SS
188
V
SS
98
V
SS
218
V
SS
9
V
CC
129
V
CC
39
V
SS
159
V
SS
KEY 99 PS7 219 SS7
10
V
CC
130
V
CC
40 PN13 160 SN13 69
V
SS
189
V
SS
100 PS7 220 SS7
11
V
SS
131
V
SS
41 PN13 161 SN13 70 PS0 190 SS0 101
V
SS
221
V
SS
12
V
CC
132
V
CC
42
V
SS
162
V
SS
71 PS0 191 SS0 102 PS8 222 SS8
13
V
CC
133
V
CC
43
V
SS
163
V
SS
72
V
SS
192
V
SS
103 PS8 223 SS8
14
V
SS
134
V
SS
44 RFU* 164 RFU* 73 PS1 193 SS1 104
V
SS
224
V
SS
15
V
TT
135
V
TT
45 RFU* 165 RFU* 74 PS1 194 SS1 105RFU**225RFU**
16 VID1 136 VID0 46
V
SS
166
V
SS
75
V
SS
195
V
SS
106RFU**226RFU**
17 RESET
137 DNU/M_Test 47
V
SS
167
V
SS
76 PS2 196 SS2 107
V
SS
227
V
SS
18
V
SS
138
V
SS
48 PN12 168 SN12 77 PS2 197 SS2 108
V
DD
228 SCK
19 RFU** 139 RFU** 49 PN12
169 SN12 78
V
SS
198
V
SS
109
V
DD
229 SCK
20 RFU** 140 RFU** 50
V
SS
170
V
SS
79 PS3 199 SS3 110
V
SS
230
V
SS
21
V
SS
141
V
SS
51 PN6 171 SN6 80 PS3 200 SS3 111
V
DD
231
V
DD
22 PN0 142 SN0 52 PN6 172 SN6 81
V
SS
201
V
SS
112
V
DD
232
V
DD
23 PN0 143 SN0 53
V
SS
173
V
SS
82 PS4 202 SS4 113
V
DD
233
V
DD
24
V
SS
144
V
SS
54 PN7 174 SN7 83 PS4 203 SS4 114
V
SS
234
V
SS
25 PN1 145 SN1 55 PN7 175 SN7 84
V
SS
204
V
SS
115
V
DD
235
V
DD
26 PN1 146 SN1 56
V
SS
176
V
SS
85
V
SS
205
V
SS
116
V
DD
236
V
DD
27
V
SS
147
V
SS
57 PN8 177 SN8 86 RFU* 206 RFU* 117
V
TT
237
V
TT
28 PN2 148 SN2 58 PN8 178 SN8 87 RFU* 207 RFU* 118 SA2 238
V
DDSPD
29 PN2 149 SN2 59
V
SS
179
V
SS
88
V
SS
208
V
SS
119 SDA 239 SA0
30
V
SS
150
V
SS
60 PN9 180 SN9 89
V
SS
209
V
SS
120 SCL 240 SA1
90 PS9 210 SS9