Features
RoHS compliant products.
JEDEC standard 1.5V ± 0.075V Power supply
VDDQ=1.5V ± 0.075V
Clock Freq: 533MHZ for 1066Mb/s/Pin
667MHZ for 1333Mb/s/Pin.
800MHZ for 1600Mb/s/Pin.
Programmable CAS Latency: 6, 7, 8, 9 ,10 ,11
Programmable Additive Latency (Posted /CAS):
0,CL-2 or CL-1 clock
Programmable /CAS Write Latency (CWL)
= 6 (DDR3-1066),7 (DDR3-1333) , 8(DDR3-1600)
8 bit pre-fetch
Burst Length: 4, 8
Internal calibration through ZQ pin
On Die Termination with ODT pin
Serial presence detect with EEPROM
Asynchronous reset
Pin Identification
Symbol
Function
A0~A15, BA0~BA2
Address/Bank input
DQ0~DQ63
Bi-direction data bus.
DQS0~DQS7
Data strobes
/DQS0~/DQS7
Differential Data strobes
CK0, /CK0,CK1, /CK1
Clock Input. (Differential pair)
CKE0, CKE1
Clock Enable Input.
ODT0, ODT1
On-die termination control line
/S0, /S1
DIMM rank select lines.
/RAS
Row address strobe
/CAS
Column address strobe
/WE
Write Enable
DM0~DM7
Data masks/high data strobes
VDD
Core power supply
VDDQ
I/O driver power supply
VREFDQ
I/O reference supply
VREFCA
Command/address reference
supply
VDDSPD
SPD EEPROM power supply
SA0~SA2
Address select for EEPROM
SCL
Clock for EEPROM
SDA
Data for EEPROM
VSS
Ground
/RESET
Set DRAMs Known State
VTT
SDRAM I/O termination supply
NC
No Connection
DDR3 Unbuffered DIMM is high-speed, low power memory module that
use DDR3 SDRAM in FBGA package and a 2048 bits serial EEPROM on
a 240-pin printed circuit board. DDR3 Unbuffered DIMM is a Dual In-Line
Memory Module and is intended for mounting into 240-pin edge
connector sockets.
Synchronous design allows precise cycle control with the use of system
clock. Data I/O transactions are possible on both edges of DQS. Range
of operation frequencies, programmable latencies allow the same device
to be useful for a variety of high bandwidth, high performance memory
system applications.
DDR3 Unbuffered DIMM
Dimensions (Unit: millimeter)
Note:
1. Tolerances on all dimensions +/-0.15mm unless otherwise specified.
Pin Assignments
Pin
No
Pin
Name
Pin
No
Pin
Name
Pin
No
Pin
Name
Pin
No
Pin
Name
Pin
No
Pin
Name
Pin
No
Pin
Name
01
VREFDQ
41
VSS
81
DQ32
121
VSS
161
NC
201
DQ37
02
VSS
42
NC
82
DQ33
122
DQ4
162
NC
202
VSS
03
DQ0
43
NC
83
VSS
123
DQ5
163
VSS
203
DM4
04
DQ1
44
VSS
84
/DQS4
124
VSS
164
NC
204
NC
05
VSS
45
NC
85
DQS4
125
DM0
165
NC
205
VSS
06
/DQS0
46
NC
86
VSS
126
NC
166
VSS
206
DQ38
07
DQS0
47
VSS
87
DQ34
127
VSS
167
NC
207
DQ39
08
VSS
48
NC
88
DQ35
128
DQ6
168
/RESET
208
VSS
09
DQ2
49
NC
89
VSS
129
DQ7
169
CKE1,NC
209
DQ44
10
DQ3
50
CKE0
90
DQ40
130
VSS
170
VDD
210
DQ45
11
VSS
51
VDD
91
DQ41
131
DQ12
171
A15
211
VSS
12
DQ8
52
BA2
92
VSS
132
DQ13
172
A14
212
DM5
13
DQ9
53
NC
93
/DQS5
133
VSS
173
VDD
213
NC
14
VSS
54
VDD
94
DQS5
134
DM1
174
A12
214
VSS
15
/DQS1
55
A11
95
VSS
135
NC
175
A9
215
DQ46
16
DQS1
56
A7
96
DQ42
136
VSS
176
VDD
216
DQ47
17
VSS
57
VDD
97
DQ43
137
DQ14
177
A8
217
VSS
18
DQ10
58
A5
98
VSS
138
DQ15
178
A6
218
DQ52
19
DQ11
59
A4
99
DQ48
139
VSS
179
VDD
219
DQ53
20
VSS
60
VDD
100
DQ49
140
DQ20
180
A3
220
VSS
21
DQ16
61
A2
101
VSS
141
DQ21
181
A1
221
DM6
22
DQ17
62
VDD
102
/DQS6
142
VSS
182
VDD
222
NC
23
VSS
63
CK1,NC
103
DQS6
143
DM2
183
VDD
223
VSS
24
/DQS2
64
/CK1,NC
104
VSS
144
NC
184
CK0
224
DQ54
25
DQS2
65
VDD
105
DQ50
145
VSS
185
/CK0
225
DQ55
26
VSS
66
VDD
106
DQ51
146
DQ22
186
VDD
226
VSS
27
DQ18
67
VREFCA
107
VSS
147
DQ23
187
NC
227
DQ60
28
DQ19
68
NC
108
DQ56
148
VSS
188
A0
228
DQ61
29
VSS
69
VDD
109
DQ57
149
DQ28
189
VDD
229
VSS
30
DQ24
70
A10/AP
110
VSS
150
DQ29
190
BA1
230
DM7
31
DQ25
71
BA0
111
/DQS7
151
VSS
191
VDD
231
NC
32
VSS
72
VDD
112
DQS7
152
DM3
192
/RAS
232
VSS
33
/DQS3
73
/WE
113
VSS
153
NC
193
/S0
233
DQ62
34
DQS3
74
/CAS
114
DQ58
154
VSS
194
VDD
234
DQ63
35
VSS
75
VDD
115
DQ59
155
DQ30
195
ODT0
235
VSS
36
DQ26
76
/S1,NC
116
VSS
156
DQ31
196
A13
236
VDDSPD
37
DQ27
77
ODT1,NC
117
SA0
157
VSS
197
VDD
237
SA1
38
VSS
78
VDD
118
SCL
158
NC
198
NC
238
SDA
39
NC
79
NC
119
SA2
159
NC
199
VSS
239
VSS
40
NC
80
VSS
120
VTT
160
VSS
200
DQ36
240
VTT
