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参数资料
| 型号： | W3DG634V7D2 |
| 厂商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分类： | DRAM |
| 英文描述： | 4M X 64 SYNCHRONOUS DRAM MODULE, DMA168 |
| 封装： | DIMM-168 |
| 文件页数： | 1/6页 |
| 文件大小： | 117K |
| 代理商： | W3DG634V7D2 |
July 2004
Rev 1
W3DG644V-D2
1
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
White Electronic Designs Corp. reserves the right to change products or specications without notice.
PRELIMINARY*
32MB - 4M x 64 SDRAM UNBUFFERED
FEATURES
PC100 and PC133 compatible
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
3.3V ± 0.3V Power Supply
168 pin DIMM JEDEC
DESCRIPTION
The W3DG644V is a 4M x 64 synchronous DRAM module
which consists of four 4M x 16 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 qualied or characterized and is subject to
change without notice.
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
PIN NAMES
* WP (write protect) option available on pin 81, see
ordering information on page 5.
** These pins should be NC in the system which
does not support SPD.
A0 – A11
Address input (Multiplexed)
BA0-1
Select Bank
DQ0-63
Data Input/Output
CLK0,CLK2
Clock input
CKE0
Clock Enable input
CS0#,CS2#
Chip select Input
RAS#
Row Address Strobe
CAS#
Column Address Strobe
WE#
Write Enable
DQM0-7#
DQM
VCC
Power Supply (3.3V)
VSS
Ground
SDA
Serial data I/O
SCL
Serial clock
DNU
Do not use
NC
No Connect
PIN FRONT
PIN
FRONT
PIN
FRONT
PIN
BACK
PIN
BACK
PIN
BACK
1VSS
29
DQM1
57
DQ18
85
VSS
113
DQM5
141
DQ50
2
DQ0
30
CS0#
58
DQ19
86
DQ32
114
CS1#
142
DQ51
3DQ1
31
DNU
59
VCC
87
DQ33
115
RAS#
143
VCC
4DQ2
32
VSS
60
DQ20
88
DQ34
116
VSS
144
DQ52
5
DQ3
33
A0
61
NC
89
DQ35
117
A1
145
NC
6VCC
34
A2
62
NC
90
VCC
118
A3
146
NC
7
DQ4
35
A4
63
NC
91
DQ36
119
A5
147
DNU
8
DQ5
36
A6
64
VSS
92
DQ37
120
A7
148
VSS
9
DQ6
37
A8
65
DQ21
93
DQ38
121
A9
149
DQ53
10
DQ7
38
A10/AP
66
DQ22
94
DQ39
122
BA0
150
DQ54
11
DQ8
39
BA1
67
DQ23
95
DQ40
123
A11
151
DQ55
12
VSS
40
VCC
68
VSS
96
VSS
124
VCC
152
VSS
13
DQ9
41
VCC
69
DQ24
97
DQ41
125
NC
153
DQ56
14
DQ10
42
CLK0
70
DQ25
98
DQ42
126
NC
154
DQ57
15
DQ11
43
VSS
71
DQ26
99
DQ43
127
VSS
155
DQ58
16
DQ12
44
DNU
72
DQ27
100
DQ44
128
CKE0
156
DQ59
17
DQ13
45
CS2#
73
VCC
101
DQ45
129
NC
157
VCC
18
VCC
46
DQM2
74
DQ28
102
VCC
130
DQM6
158
DQ60
19
DQ14
47
DQM3
75
DQ29
103
DQ46
131
DQM7
159
DQ61
20
DQ15
48
DNU
76
DQ30
104
DQ47
132
NC
160
DQ62
21
NC
49
VCC
77
DQ31
105
NC
133
VCC
161
DQ63
22
NC
50
NC
78
VSS
106
NC
134
NC
162
VSS
23
VSS
51
NC
79
CLK2
107
VSS
135
NC
163
NC
24
NC
52
NC
80
NC
108
NC
136
NC
164
NC
25
NC
53
NC
81
*WP
109
NC
137
NC
165
**SA0
26
VCC
54
VSS
82
**SDA
110
VCC
138
VSS
166
**SA1
27
WE#
55
DQ16
83
**SCL
111
CAS#
139
DQ48
167
**SA2
28
DQM0
56
DQ17
84
VCC
112
DQM4
140
DQ49
168
VCC
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相关代理商/技术参数 |
参数描述 |
|---|---|
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