Memory module DDR SDRAM DIMM (184 pin, Unbuffered)
Pinout of DDR SDRAM DIMM connector (184 pin, Unbuffered) Download PDF
Slot pin # |
Name |
Description |
1 |
VREF |
Power supply for reference |
2 |
DQ0 |
Data input / output |
3 |
VSS |
Ground |
4 |
DQ1 |
Data input / output |
5 |
DQS0 |
Data strobe input / output |
6 |
DQ2 |
Data input / output |
7 |
VDD |
Power supply (2,5V) |
8 |
DQ3 |
Data input / output |
9 |
NC |
Not connected |
10 |
NC |
Not connected |
11 |
VSS |
Ground |
12 |
DQ8 |
Data input / output |
13 |
DQ9 |
Data input / output |
14 |
DQS1 |
Data strobe input / output |
15 |
VDD |
Power supply (2,5V) |
16 |
CK1 |
Clock input |
17 |
CK1# |
Clock input |
18 |
VSS |
Ground |
19 |
DQ10 |
Data input / output |
20 |
DQ11 |
Data input / output |
21 |
CKE0 |
Clock enable input |
22 |
VDD |
Power supply (2,5V) |
23 |
DQ16 |
Data input / output |
24 |
DQ17 |
Data input / output |
25 |
DQS2 |
Data strobe input / output |
26 |
VSS |
Ground |
27 |
A9 |
Address input (multiplexed) |
28 |
DQ18 |
Data input / output |
29 |
A7 |
Address input (multiplexed) |
30 |
VDD |
Power supply (2,5V) |
31 |
DQ19 |
Data input / output |
32 |
A5 |
Address input (multiplexed) |
33 |
DQ24 |
Data input / output |
34 |
VSS |
Ground |
35 |
DQ25 |
Data input / output |
36 |
DQS3 |
Data strobe input / output |
37 |
A4 |
Address input (multiplexed) |
38 |
VDD |
Power supply (2,5V) |
39 |
DQ26 |
Data input / output |
40 |
DQ27 |
Data input / output |
41 |
A2 |
Address input (multiplexed) |
42 |
VSS |
Ground |
43 |
A1 |
Address input (multiplexed) |
44 |
CB0 |
Not connected |
45 |
CB1 |
Not connected |
46 |
VDD |
Power supply (2,5V) |
47 |
DQS8 |
Data strobe input / output |
48 |
A0 |
Address input (multiplexed) |
49 |
CB2 |
Not connected |
50 |
VSS |
Ground |
51 |
CB3 |
Not connected |
52 |
BA1 |
Bank select address |
53 |
DQ32 |
Data input / output |
54 |
VDD |
Power supply (2,5V) |
55 |
DQ33 |
Data input / output |
56 |
DQS4 |
Data strobe input / output |
57 |
DQ34 |
Data input / output |
58 |
VSS |
Ground |
59 |
BA0 |
Bank select address |
60 |
DQ35 |
Data input / output |
61 |
DQ40 |
Data input / output |
62 |
VDD |
Power supply (2,5V) |
63 |
WE# |
Write enable |
64 |
DQ41 |
Data input / output |
65 |
CAS# |
Column address strobe |
66 |
VSS |
Ground |
67 |
DQS5 |
Data strobe input / output |
68 |
DQ42 |
Data input / output |
69 |
DQ43 |
Data input / output |
70 |
VDD |
Power supply (2,5V) |
71 |
NC |
Not connected |
72 |
DQ48 |
Data input / output |
73 |
DQ49 |
Data input / output |
74 |
VSS |
Ground |
75 |
CK2# |
Clock input |
76 |
CK2 |
Clock input |
77 |
VDD |
Power supply (2,5V) |
78 |
DQS6 |
Data strobe input / output |
79 |
DQ50 |
Data input / output |
80 |
DQ51 |
Data input / output |
81 |
VSS |
Ground |
82 |
NC |
Not connected |
83 |
DQ56 |
Data input / output |
84 |
DQ57 |
Data input / output |
85 |
VDD |
Power supply (2,5V) |
86 |
DQS7 |
Data strobe input / output |
87 |
DQ58 |
Data input / output |
88 |
DQ59 |
Data input / output |
89 |
VSS |
Ground |
90 |
NC |
Not connected |
91 |
SDA |
Serial data I/O |
92 |
SCL |
Serial clock |
93 |
VSS |
Ground |
94 |
DQ4 |
Data input / output |
95 |
DQ5 |
Data input / output |
96 |
VDD |
Power supply (2,5V) |
97 |
DQS9 |
Data strobe input / output |
98 |
DQ6 |
Data input / output |
99 |
DQ7 |
Data input / output |
100 |
VSS |
Ground |
101 |
NC |
Not connected |
102 |
NC |
Not connected |
103 |
NC |
Not connected |
104 |
VDD |
Power supply (2,5V) |
105 |
DQ12 |
Data input / output |
106 |
DQ13 |
Data input / output |
107 |
DQS10 |
Data strobe input / output |
108 |
VDD |
Power supply (2,5V) |
109 |
DQ14 |
Data input / output |
110 |
DQ15 |
Data input / output |
111 |
CKE1 |
Clock enable input |
112 |
VDD |
Power supply (2,5V) |
113 |
NC |
Not connected |
114 |
DQ20 |
Data input / output |
115 |
A12 |
Address input (multiplexed) |
116 |
VSS |
Ground |
117 |
DQ21 |
Data input / output |
118 |
A11 |
Address input (multiplexed) |
119 |
DQS11 |
Data strobe input / output |
120 |
VDD |
Power supply (2,5V) |
121 |
DQ22 |
Data input / output |
122 |
A8 |
Address input (multiplexed) |
123 |
DQ23 |
Data input / output |
124 |
VSS |
Ground |
125 |
A6 |
Address input (multiplexed) |
126 |
DQ28 |
Data input / output |
127 |
DQ29 |
Data input / output |
128 |
VDD |
Power supply (2,5V) |
129 |
DQS12 |
Data strobe input / output |
130 |
A3 |
Address input (multiplexed) |
131 |
DQ30 |
Data input / output |
132 |
VSS |
Ground |
133 |
DQ31 |
Data input / output |
134 |
CB4 |
Not connected |
135 |
CB5 |
Not connected |
136 |
VDD |
Power supply (2,5V) |
137 |
CK0 |
Clock input |
138 |
CK0# |
Clock input |
139 |
VSS |
Ground |
140 |
DQS17 |
Data strobe input / output |
141 |
A10 |
Address input (multiplexed) |
142 |
CB6 |
Not connected |
143 |
VDD |
Power supply (2,5V) |
144 |
CB7 |
Not connected |
145 |
VSS |
Ground |
146 |
DQ36 |
Data input / output |
147 |
DQ37 |
Data input / output |
148 |
VDD |
Power supply (2,5V) |
149 |
DQS13 |
Data strobe input / output |
150 |
DQ38 |
Data input / output |
151 |
DQ39 |
Data input / output |
152 |
VSS |
Ground |
153 |
DQ44 |
Data input / output |
154 |
RAS# |
Row address strobe |
155 |
DQ45 |
Data input / output |
156 |
VDD |
Power supply (2,5V) |
157 |
S0# |
Chip select input |
158 |
S1# |
Chip select input |
159 |
DQS14 |
Data strobe input / output |
160 |
VSS |
Ground |
161 |
DQ46 |
Data input / output |
162 |
DQ47 |
Data input / output |
163 |
NC |
Not connected |
164 |
VDD |
Power supply (2,5V) |
165 |
DQ52 |
Data input / output |
166 |
DQ53 |
Data input / output |
167 |
NC |
Not connected |
168 |
VDD |
Power supply (2,5V) |
169 |
DQS15 |
Data strobe input / output |
170 |
DQ54 |
Data input / output |
171 |
DQ55 |
Data input / output |
172 |
VDD |
Power supply (2,5V) |
173 |
NC |
Not connected |
174 |
DQ60 |
Data input / output |
175 |
DQ61 |
Data input / output |
176 |
VSS |
Ground |
177 |
DQS16 |
Data strobe input / output |
178 |
DQ62 |
Data input / output |
179 |
DQ63 |
Data input / output |
180 |
VDD |
Power supply (2,5V) |
181 |
SA0 |
Address in EEPROM |
182 |
SA1 |
Address in EEPROM |
183 |
SA2 |
Address in EEPROM |
184 |
VDDSPD |
Serial EEPROM power supply (2,3-3,6V) |
240 pin DDR2 connector
Memory DDR2 SDRAM DIMM Unbuffered Module (240 pin) Download
Connector## |
Description |
Connector# |
Description |
1 |
VREF |
121 |
VSS |
2 |
VSS |
122 |
DQ4 |
3 |
DQ0 |
123 |
DQ5 |
4 |
DQ1 |
124 |
VSS |
5 |
VSS |
125 |
DM0 |
6 |
/DQS0 |
126 |
NC |
7 |
DQS0 |
127 |
VSS |
8 |
VSS |
128 |
DQ6 |
9 |
DQ2 |
129 |
DQ7 |
10 |
DQ3 |
130 |
VSS |
11 |
VSS |
131 |
DQ12 |
12 |
DQ8 |
132 |
DQ13 |
13 |
DQ9 |
133 |
VSS |
14 |
VSS |
134 |
DM1 |
15 |
/DQS1 |
135 |
NC |
16 |
DQS1 |
136 |
VSS |
17 |
VSS |
137 |
CK1 |
18 |
NC |
138 |
/CK1 |
19 |
NC |
139 |
VSS |
20 |
VSS |
140 |
DQ14 |
21 |
DQ10 |
141 |
DQ15 |
22 |
DQ11 |
142 |
VSS |
23 |
VSS |
143 |
DQ20 |
24 |
DQ16 |
144 |
DQ21 |
25 |
DQ17 |
145 |
VSS |
26 |
VSS |
146 |
DM2 |
27 |
/DQS2 |
147 |
NC |
28 |
DQS2 |
148 |
VSS |
29 |
VSS |
149 |
DQ22 |
30 |
DQ18 |
150 |
DQ23 |
31 |
DQ19 |
151 |
VSS |
32 |
VSS |
152 |
DQ28 |
33 |
DQ24 |
153 |
DQ29 |
34 |
DQ25 |
154 |
VSS |
35 |
VSS |
155 |
DM3 |
36 |
/DQS3 |
156 |
NC |
37 |
DQS3 |
157 |
VSS |
38 |
VSS |
158 |
DQ30 |
39 |
DQ26 |
159 |
DQ31 |
40 |
DQ27 |
160 |
VSS |
41 |
VSS |
161 |
NC |
42 |
NC |
162 |
NC |
43 |
NC |
163 |
VSS |
44 |
VSS |
164 |
NC |
45 |
NC |
165 |
NC |
46 |
NC |
166 |
VSS |
47 |
VSS |
167 |
NC |
48 |
NC |
168 |
NC |
49 |
NC |
169 |
VSS |
50 |
VSS |
170 |
VDDQ |
51 |
VDDQ |
171 |
CKE1 |
52 |
CKE0 |
172 |
VDD |
53 |
VDD |
173 |
NC |
54 |
NC |
174 |
NC |
55 |
NC |
175 |
VDDQ |
56 |
VDDQ |
176 |
A12 |
57 |
A11 |
177 |
A9 |
58 |
A7 |
178 |
VDD |
59 |
VDD |
179 |
A8 |
60 |
A5 |
180 |
A6 |
61 |
A4 |
181 |
VDDQ |
62 |
VDDQ |
182 |
A3 |
63 |
A2 |
183 |
A1 |
64 |
VDD |
184 |
VDD |
KEY |
|||
65 |
VSS |
185 |
CK0 |
66 |
VSS |
186 |
/CK0 |
67 |
VDD |
187 |
VDD |
68 |
NC |
188 |
A0 |
69 |
VDD |
189 |
VDD |
70 |
A10/AP |
190 |
BA1 |
71 |
BA0 |
191 |
VDDQ |
72 |
VDDQ |
192 |
/RAS |
73 |
/WE |
193 |
/CS0 |
74 |
/CAS |
194 |
VDDQ |
75 |
VDDQ |
195 |
ODT0 |
76 |
/CS1 |
196 |
A13 |
77 |
ODT1 |
197 |
VDD |
78 |
VDDQ |
198 |
VSS |
79 |
VSS |
199 |
DQ36 |
80 |
DQ32 |
200 |
DQ37 |
81 |
DQ33 |
201 |
VSS |
82 |
VSS |
202 |
DM4 |
83 |
/DQS4 |
203 |
NC |
84 |
DQS4 |
204 |
VSS |
85 |
VSS |
205 |
DQ38 |
86 |
DQ34 |
206 |
DQ39 |
87 |
DQ35 |
207 |
VSS |
88 |
VSS |
208 |
DQ44 |
89 |
DQ40 |
209 |
DQ45 |
90 |
DQ41 |
210 |
VSS |
91 |
VSS |
211 |
DM5 |
92 |
/DQS5 |
212 |
NC |
93 |
DQS5 |
213 |
VSS |
94 |
VSS |
214 |
DQ46 |
95 |
DQ42 |
215 |
DQ47 |
96 |
DQ43 |
216 |
VSS |
97 |
VSS |
217 |
DQ52 |
98 |
DQ48 |
218 |
DQ53 |
99 |
DQ49 |
219 |
VSS |
100 |
VSS |
220 |
CK2 |
101 |
SA2 |
221 |
/CK2 |
102 |
NC |
222 |
VSS |
103 |
VSS |
223 |
DM6 |
104 |
/DQS6 |
224 |
NC |
105 |
DQS6 |
225 |
VSS |
106 |
VSS |
226 |
DQ54 |
107 |
DQ50 |
227 |
DQ55 |
108 |
DQ51 |
228 |
VSS |
109 |
VSS |
229 |
DQ60 |
110 |
DQ56 |
230 |
DQ61 |
111 |
DQ57 |
231 |
VSS |
112 |
VSS |
232 |
DM7 |
113 |
/DQS7 |
233 |
NC |
114 |
DQS7 |
234 |
VSS |
115 |
VSS |
235 |
DQ62 |
116 |
DQ58 |
236 |
DQ63 |
117 |
DQ59 |
237 |
VSS |
118 |
VSS |
238 |
VDDSPD |
119 |
SDA |
239 |
SA0 |
120 |
SCL |
240 |
SA1 |
240 pin DDR3 connector
Pin descriptions and other pinout information can be found in the documentation for Micron DDR3 memory modules. Download