Transcend Transcend 1GB DDR3

Transcend Transcend 1GB DDR3
DDR3 ECC SO-DIMM
DDR3 ECC SO-DIMM is high-speed, low power memory module that use
DDR3 SDRAM in FBGA package and a 2048 bits serial EEPROM on a
204-pin printed circuit board. DDR3 ECC SO-DIMM is a Dual In-Line
Memory Module and is intended for mounting into 204-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.

Features
Symbol
Function
A0~A14, BA0~BA2
Address/Bank input
DQ0~DQ63
Data Input / Output.
DQS0~DQS8
Data strobes
/DQS0~/DQS8
Differential Data strobes
CB0~CB7
DIMM ECC check bits
CK0, /CK0,CK1, /CK1
Clock Input. (Differential pair)
0,CL-2 or CL-1 clock
CKE0, CKE1
Clock Enable Input.
Programmable /CAS Write Latency (CWL)
ODT0, ODT1
On-die termination control line
/CS0, /CS1
DIMM Rank Select Lines.
/RAS
Row Address Strobe
/CAS
Column Address Strobe

RoHS compliant products.

JEDEC standard 1.5V ± 0.075V Power supply

VDDQ=1.5V ± 0.075V

Clock Freq: 667MHZ for 1333Mb/s/Pin.

Clock Freq: 800MHZ for 1600Mb/s/Pin.

Programmable CAS Latency: 5, 6, 7, 8, 9 ,10, 11

Programmable Additive Latency (Posted /CAS):

Pin Identification
= 7(DDR3-1333) , 8(DDR3-1600)

8 bit pre-fetch

Burst Length: 4, 8

Bi-directional Differential Data-Strobe

Internal calibration through ZQ pin
/WE
Write Enable

On Die Termination with ODT pin
DM0~DM8
Data masks/high data strobes

Serial presence detect with EEPROM
VDD
Voltage power supply

On DIMM thermal Sensor
VDDQ
Voltage Power Supply for DQS

Asynchronous reset
VREFDQ/ VREFCA
Power Supply for Reference
VDDSPD
SPD EEPROM Power Supply
I2C serial bus address select for
SA0~SA1
EEPROM
SCL
I2C serial bus clock for EEPROM
SDA
I2C serial bus data for EEPROM
VSS
Ground
/RESET
Set DRAMs Known State
VTT
SDRAM I/O termination supply
NC
No Connection
Dimensions (Unit: millimeter)
Note:
1. Tolerances on all dimensions +/-0.15mm unless otherwise specified.
Pin Assignments
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
No
Name
No
Name
No
Name
No
Name
No
Name
No
Name
01
VREFDQ
69
CB0
137
VSS
02
VSS
70
VSS
138
VSS
03
VSS
71
CB1
139
/DQS4
04
DQ4
72
CB4
140
DM4
05
DQ0
73
VSS
141
DQS4
06
DQ5
74
CB5
142
DQ38
07
DQ1
75
/DQS8
143
VSS
08
VSS
76
DM8
144
DQ39
09
VSS
77
DQS8
145
DQ34
10
/DQS0
78
VSS
146
VSS
11
DM0
79
VSS
147
DQ35
12
DQS0
80
CB6
148
DQ44
13
DQ2
81
CB2
149
VSS
14
VSS
82
CB7
150
DQ45
15
DQ3
83
CB3
151
DQ40
16
DQ6
84
VREFCA
152
VSS
17
VSS
85
VDD
153
DQ41
18
DQ7
86
VDD
154
/DQS5
19
DQ8
87
CKE0
155
VSS
20
VSS
88
NC
156
DQS5
21
DQ9
89
CKE1
157
DM5
22
DQ12
90
A14
158
VSS
23
VSS
91
BA2
159
DQ42
24
DQ13
92
A9
160
DQ46
25
/DQS1
93
VDD
161
DQ43
26
VSS
94
VDD
162
DQ47
27
DQS1
95
A12
163
VSS
28
DM1
96
A11
164
VSS
29
VSS
97
A8
165
DQ48
30
/RESET
98
A7
166
DQ52
31
DQ10
99
A5
167
DQ49
32
VSS
100
A6
168
DQ53
33
DQ11
101
VDD
169
VSS
34
DQ14
102
VDD
170
VSS
35
VSS
103
A3
171
/DQS6
36
DQ15
104
A4
172
DM6
37
DQ16
105
A1
173
DQS6
38
VSS
106
A2
174
DQ54
39
DQ17
107
A0
175
VSS
40
DQ20
108
BA1
176
DQ55
41
VSS
109
VDD
177
DQ50
42
DQ21
110
VDD
178
VSS
43
/DQS2
111
CK0
179
DQ51
44
DM2
112
CK1
180
DQ60
45
DQS2
113
/CK0
181
VSS
46
VSS
114
/CK1
182
DQ61
47
VSS
115
VDD
183
DQ56
48
DQ22
116
VDD
184
VSS
49
DQ18
117
A10/AP
185
DQ57
50
DQ23
118
NC
186
/DQS7
51
DQ19
119
BA0
187
VSS
52
VSS
120
NC
188
DQS7
53
VSS
121
/WE
189
DM7
54
DQ28
122
/RAS
190
VSS
55
DQ24
123
VDD
191
DQ58
56
DQ29
124
VDD
192
DQ62
57
DQ25
125
/CAS
193
DQ59
58
VSS
126
ODT0
194
DQ63
59
DM3
127
/CS0
195
VSS
60
/DQS3
128
ODT1
196
VSS
61
VSS
129
/CS1
197
SA0
62
DQS3
130
A13
198
/EVENT
63
DQ26
131
VDD
199
VDDSPD
64
VSS
132
VDD
200
SDA
65
DQ27
133
DQ32
201
SA1
66
DQ30
134
DQ36
202
SCL
67
VSS
135
DQ33
203
Vtt
68
DQ31
136
DQ37
204
Vtt
/CS1,ODT1,CKE1:Used for dual-rank SO-DIMMs; NC on single-rank SO-DIMMs.
CK1 and /CK1:Used for dual-rank SO-DIMMs; not used on single-rank SO-DIMMs but terminated.
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