W3DG7217V-D2
White Electronic Designs
PRELIMINARY*
128MB - 16Mx72 SDRAM UNBUFFERED
FEATURES
DESCRIPTION
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Burst Mode Operation
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.
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
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Programmable Burst Lengths: 1, 2, 4, 8 or Full Page
3.3 volt ꢀ.3v Power Supply
168- Pin DIMM JEDEC
* This product is under development, is not qualified or characterized and is subject to
change without notice.
Pin ConfigurATIONs (FRONT SIDE/BACK SIDE)
PIN NAMES
Pin
1
Front
VSS
DQꢀ
DQ1
DQ2
DQ3
VCC
DQ4
DQ5
DQ6
DQ7
DQ8
VSS
DQ9
DQ1ꢀ
DQ11
DQ12
DQ13
VCC
Pin
29
3ꢀ
31
32
33
34
35
36
37
Front
DQM1
CSꢀ#
DNU
VSS
Pin
57
58
59
6ꢀ
61
62
63
64
65
Front
DQ18
DQ19
VCC
Pin
85
86
87
88
89
9ꢀ
91
92
93
94
95
96
97
98
99
Back
VSS
Pin
Back
Pin
Back
Aꢀ – A11
BAꢀ-1
DQꢀ-63
CBꢀ-7
Address input (Multiplexed)
Select Bank
113 DQM5 141 DQ5ꢀ
2
DQ32 114 *CS1# 142 DQ51
Data Input/Output
3
DQ33 115 RAS# 143
VCC
144 DQ52
145 NC
146 *VREF
147
148
Check bit (Data-in/data-out)
4
DQ2ꢀ
NC
DQ34 116
DQ35 117
VCC
VSS
A1
CLKꢀ,CLK2 Clock input
5
Aꢀ
CKEꢀ
Clock Enable input
6
A2
*VREF
*CKE1
VSS
DQ21
DQ22
DQ23
VSS
DQ24
DQ25
DQ26
118
A3
7
A4
DQ36 119
DQ37 12ꢀ
DQ38 121
DQ39 122
DQ4ꢀ 123
A5
NC
VSS
CSꢀ#,CS2# Chip select Input
8
A6
A7
RAS#
CAS#
WE#
DQMꢀ-7
VCC
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
9
A8
A9
149 DQ53
15ꢀ DQ54
151 DQ55
1ꢀ
11
12
13
14
15
16
17
18
19
2ꢀ
21
22
23
24
25
26
27
28
38 A1ꢀ#/AP 66
BAꢀ
A11
VCC
39
4ꢀ
41
42
43
44
45
46
47
48
49
5ꢀ
51
52
53
54
55
56
BA1
VCC
VCC
CLKꢀ
VSS
DNU
CS2#
DQM2
DQM3
DNU
VCC
NC
NC
CB2
CB3
VSS
DQ16
DQ17
67
68
69
7ꢀ
71
72
73
74
75
76
77
78
79
8ꢀ
81
82
83
84
VSS
124
152
VSS
DQ41 125 *CLK1 153 DQ56
DQ42 126
DQ43 127
*A12
VSS
154 DQ57
155 DQ58
VSS
*VREF
SDA
DQ27 1ꢀꢀ DQ44 128 CKEꢀ 156 DQ59
VCC
DQ28 1ꢀ2
1ꢀ1 DQ45 129 *CS3# 157
VCC
SCL
VCC
13ꢀ DQM6 158 DQ6ꢀ
SAꢀ-2
DNU
NC
DQ14
DQ15
CBꢀ
CB1
VSS
DQ29 1ꢀ3 DQ46 131 DQM7 159 DQ61
DQ3ꢀ 1ꢀ4 DQ47 132
*A13
VCC
NC
16ꢀ DQ62
161 DQ63
DQ31 1ꢀ5
CB4
CB5
VSS
NC
NC
VCC
133
134
135
136
137
138
VSS
CLK2
NC
1ꢀ6
1ꢀ7
1ꢀ8
1ꢀ9
162
VSS
NC
163 *CLK3
* These pins are not used in this module.
** These pins should be NC in the system which
does not support SPD.
NC
CB6
CB7
VSS
164
NC
NC
NC
165 **SAꢀ
166 **SA1
VCC
**SDA 11ꢀ
**SCL 111
WE#
DQMꢀ
CAS# 139 DQ48 167 **SA2
VCC
112 DQM4 14ꢀ DQ49 168
VCC
May 2004
Rev. 2
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com