White Electronic Designs
128MB - 16Mx72 SDRAM UNBUFFERED
FEATURES
Burst Mode Operation
Auto and Self Refresh capability
LVTTL compatible inputs and outputs
Serial Presence Detect with EEPROM
Fully synchronous: All signals are registered on the positive
edge of the system clock
Programmable Burst Lengths: 1, 2, 4, 8 or Full Page
3.3 volt 鹵 0.3v Power Supply
168- Pin DIMM JEDEC
W3DG7217V-D2
PRELIMINARY*
DESCRIPTION
The W3DG7217V is a 16Mx72 synchronous DRAM module
which consists of nine 16Meg x 8 SDRAM components
in TSOP-II package, and one 2K EEPROM in an 8-pin
TSSOP package for Serial Presence Detect which are
mounted on a 168 Pin DIMM multilayer FR4 Substrate.
* This product is under development, is not quali鏗乪d or characterized and is subject to
change without notice.
Pin Con鏗乬urATIONs (FRONT SIDE/BACK SIDE)
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Front
V
SS
DQ0
DQ1
DQ2
DQ3
V
CC
DQ4
DQ5
DQ6
DQ7
DQ8
V
SS
DQ9
DQ10
DQ11
DQ12
DQ13
V
CC
DQ14
DQ15
CB0
CB1
V
SS
NC
NC
V
CC
WE#
DQM0
Pin
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
Front
Pin
DQM1
57
CS0#
58
DNU
59
V
SS
60
A0
61
A2
62
A4
63
A6
64
A8
65
A10#/AP 66
BA1
67
V
CC
68
V
CC
69
CLK0
70
71
V
SS
DNU
72
CS2#
73
DQM2
74
DQM3
75
DNU
76
V
CC
77
NC
78
NC
79
CB2
80
CB3
81
V
SS
82
DQ16
83
DQ17
84
Front
DQ18
DQ19
V
CC
DQ20
NC
*VREF
*CKE1
V
SS
DQ21
DQ22
DQ23
V
SS
DQ24
DQ25
DQ26
DQ27
V
CC
DQ28
DQ29
DQ30
DQ31
V
SS
CLK2
NC
NC
**SDA
**SCL
V
CC
Pin
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
Back
V
SS
DQ32
DQ33
DQ34
DQ35
V
CC
DQ36
DQ37
DQ38
DQ39
DQ40
V
SS
DQ41
DQ42
DQ43
DQ44
DQ45
V
CC
DQ46
DQ47
CB4
CB5
V
SS
NC
NC
V
CC
CAS#
DQM4
Pin
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
Back
DQM5
*CS1#
RAS#
V
SS
A1
A3
A5
A7
A9
BA0
A11
V
CC
*CLK1
*A12
V
SS
CKE0
*CS3#
DQM6
DQM7
*A13
V
CC
NC
NC
CB6
CB7
V
SS
DQ48
DQ49
Pin
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
Back
DQ50
DQ51
V
CC
DQ52
NC
*V
REF
NC
V
SS
DQ53
DQ54
DQ55
V
SS
DQ56
DQ57
DQ58
DQ59
V
CC
DQ60
DQ61
DQ62
DQ63
V
SS
*CLK3
NC
**SA0
**SA1
**SA2
V
CC
PIN NAMES
A0 鈥?A11
BA0-1
DQ0-63
CB0-7
CLK0,CLK2
CKE0
CS0#,CS2#
RAS#
CAS#
WE#
DQM0-7
V
CC
V
SS
*V
REF
SDA
SCL
SA0-2
DNU
NC
Address input (Multiplexed)
Select Bank
Data Input/Output
Check bit (Data-in/data-out)
Clock input
Clock Enable input
Chip select Input
Row Address Strobe
Column Address Strobe
Write Enable
DQM
Power Supply (3.3V)
Ground
Power supply for reference
Serial data I/O
Serial clock
Address in EEPROM
Do not use
No Connect
* These pins are not used in this module.
** These pins should be NC in the system which
does not support SPD.
May 2004
Rev. 2
1
White Electronic Designs Corporation 鈥?(602) 437-1520 鈥?www.wedc.com
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