DDR SDRAM DIMM (184 pin, Unbuffered) pinout and signals @ pinouts.ru

Motherboard
Pin

Name

Direction

Description

VREF

-?-

Power supply for reference

DQ0

-?-

Data input / output

VSS

-?-

Ground

DQ1

-?-

Data input / output

DQS0

-?-

Data strobe input / output

DQ2

-?-

Data input / output

VDD

-?-

Power supply (2,5V)

DQ3

-?-

Data input / output

-?-

Not connected

-?-

Not connected

VSS

-?-

Ground

DQ8

-?-

Data input / output

DQ9

-?-

Data input / output

DQS1

-?-

Data strobe input / output

VDD

-?-

Power supply (2,5V)

CK1

-?-

Clock input

CK1#

-?-

Clock input

VSS

-?-

Ground

DQ10

-?-

Data input / output

DQ11

-?-

Data input / output

CKE0

-?-

Clock enable input

VDD

-?-

Power supply (2,5V)

DQ16

-?-

Data input / output

DQ17

-?-

Data input / output

DQS2

-?-

Data strobe input / output

VSS

-?-

Ground

-?-

Address input (multiplexed)

DQ18

-?-

Data input / output

-?-

Address input (multiplexed)

VDD

-?-

Power supply (2,5V)

DQ19

-?-

Data input / output

-?-

Address input (multiplexed)

DQ24

-?-

Data input / output

VSS

-?-

Ground

DQ25

-?-

Data input / output

DQS3

-?-

Data strobe input / output

-?-

Address input (multiplexed)

VDD

-?-

Power supply (2,5V)

DQ26

-?-

Data input / output

DQ27

-?-

Data input / output

-?-

Address input (multiplexed)

VSS

-?-

Ground

-?-

Address input (multiplexed)

CB0

-?-

Not connected

CB1

-?-

Not connected

VDD

-?-

Power supply (2,5V)

DQS8

-?-

Data strobe input / output

-?-

Address input (multiplexed)

CB2

-?-

Not connected

VSS

-?-

Ground

CB3

-?-

Not connected

BA1

-?-

Bank select address

DQ32

-?-

Data input / output

VDD

-?-

Power supply (2,5V)

DQ33

-?-

Data input / output

DQS4

-?-

Data strobe input / output

DQ34

-?-

Data input / output

VSS

-?-

Ground

BA0

-?-

Bank select address

DQ35

-?-

Data input / output

DQ40

-?-

Data input / output

VDD

-?-

Power supply (2,5V)

WE#

-?-

Write enable

DQ41

-?-

Data input / output

CAS#

-?-

Column address strobe

VSS

-?-

Ground

DQS5

-?-

Data strobe input / output

DQ42

-?-

Data input / output

DQ43

-?-

Data input / output

VDD

-?-

Power supply (2,5V)

-?-

Not connected

DQ48

-?-

Data input / output

DQ49

-?-

Data input / output

VSS

-?-

Ground

CK2#

-?-

Clock input

CK2

-?-

Clock input

VDD

-?-

Power supply (2,5V)

DQS6

-?-

Data strobe input / output

DQ50

-?-

Data input / output

DQ51

-?-

Data input / output

VSS

-?-

Ground

-?-

Not connected

DQ56

-?-

Data input / output

DQ57

-?-

Data input / output

VDD

-?-

Power supply (2,5V)

DQS7

-?-

Data strobe input / output

DQ58

-?-

Data input / output

DQ59

-?-

Data input / output

VSS

-?-

Ground

-?-

Not connected

SDA

-?-

Serial data I/O

SCL

-?-

Serial clock

VSS

-?-

Ground

DQ4

-?-

Data input / output

DQ5

-?-

Data input / output

VDD

-?-

Power supply (2,5V)

DQS9

-?-

Data strobe input / output

DQ6

-?-

Data input / output

DQ7

-?-

Data input / output

100

VSS

-?-

Ground

101

-?-

Not connected

102

-?-

Not connected

103

-?-

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

-?-

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

-?-

Address input (multiplexed)

123

DQ23

-?-

Data input / output

124

VSS

-?-

Ground

125

-?-

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

-?-

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

-?-

Not connected

164

VDD

-?-

Power supply (2,5V)

165

DQ52

-?-

Data input / output

166

DQ53

-?-

Data input / output

167

-?-

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

-?-

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)

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Pinouts.ru > Memory slots and cards connectors pinouts > Pinout of DDR SDRAM DIMM (184 pin, Unbuffered) and layout of 184 pin DIMM connector	Document status:	unknown
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Last updated at Sat Jun 25 2005. Submit additions or corrections for this document.	Is this document correct or incorrect? What is your opinion?

DDR SDRAM DIMM (184 pin, Unbuffered) pinout

memory connector