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參數(shù)資料
| 型號： | WED3DG648V10D1 |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類： | DRAM |
| 英文描述： | 8M X 64 SYNCHRONOUS DRAM MODULE, DMA144 |
| 封裝： | SODIMM-144 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 452K |
| 代理商： | WED3DG648V10D1 |
1
White Electronic Designs Corporation (508) 366-5151 www.whiteedc.com
Sept. 2002 Rev. 0
ECO #15457
WED3DG648V-D1
64MB- 8Mx64 SDRAM, UNBUFFERED
n Burst Mode Operation
n Auto and Self Refresh capability
n LVTTL compatible inputs and outputs
n Serial Presence Detect with EEPROM
n Fully synchronous: All signals are registered on the positive
edge of the system clock
n Programmable Burst Lengths: 1, 2, 4, 8 or Full Page
n 3.3 volt 6 0.3v Power Supply
n 144 Pin SO-DIMM JEDEC
The WED3DG648V is a 8Mx64 synchronous DRAM module
which consists of eight 4Mx16 SDRAM components in TSOP- 11
package, and one 2K EEPROM in an 8- pin TSSOP package for
Serial Presence Detect which are mounted on a 144 Pin SO-
DIMM multilayer FR4 Substrate.
DESCRIPTION
FEATURES
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
PIN NAMES
* These pins are not used in this module.
** These pins should be NC in the system which
does not support SPD.
Pin
Front
Pin
Back
Pin
Front
Pin
Back
Pin
Back
Pin
Back
1
VSS
2
VSS
51
DQ14
52
DQ46
95
DQ21
96
DQ53
3
DQ0
4
DQ32
53
DQ15
54
DQ47
97
DQ22
98
DQ54
5
DQ1
6
DQ33
55
VSS
56
VSS
99
DQ23
100
DQ55
7
DQ2
8
DQ34
57
NC
58
NC
101
VDD
102
VDD
9
DQ3
10
DQ35
59
NC
60
NC
103
A6
104
A7
11
VDD
12
VDD
105
A8
106
BA0
13
DQ4
14
DQ36
107
VSS
108
VSS
15
DQ5
16
DQ37
109
A9
110
BA1
17
DQ6
18
DQ38
61
CLK0
62
CKE0
111
A10/AP
112
A11
19
DQ7
20
DQ39
63
VDD
64
VDD
113
VDD
114
VDD
21
VSS
22
VSS
65
RAS
66
CAS
115
DQM2
116
DQM6
23
DQM0
24
DQM4
67
WE
68
CKE1
117
DQM3
118
DQM7
25
DQM1
26
DQM5
69
CS0
70
*A12
119
VSS
120
VSS
27
VDD
28
VDD
71
CS1
72
*A13
121
DQ24
122
DQ56
29
A0
30
A3
73
DNU
74
CLK1
123
DQ25
124
DQ57
31
A1
32
A4
75
VSS
76
VSS
125
DQ26
126
DQ58
33
A2
34
A5
77
NC
78
NC
127
DQ27
128
DQ59
35
VSS
36
VSS
79
NC
80
NC
129
VDD
130
VDD
37
DQ8
38
DQ40
81
VDD
82
VDD
131
DQ28
132
DQ60
39
DQ9
40
DQ41
83
DQ16
84
DQ48
133
DQ29
134
DQ61
41
DQ10
42
DQ42
85
DQ17
86
DQ49
135
DQ30
136
DQ62
43
DQ11
44
DQ43
87
DQ18
88
DQ50
137
DQ31
138
DQ63
45
VDD
46
VDD
89
DQ19
90
DQ51
139
VSS
140
VSS
47
DQ12
48
DQ44
91
VSS
92
VSS
141
**SDA
142
**SCL
49
DQ13
50
DQ45
93
DQ20
94
DQ52
143
VDD
144
VDD
VOLTAGE KEY
* This datasheet describes a product that may or may not be under development
and is subject to change or cancellation without notice.
A0 A11
Address input (Multiplexed)
BA0-1
Select Bank
DQ0-63
Data Input/Output
CLK0,CLK1
Clock input
CKE0,CKE1
Clock Enable input
CS0,CS1
Chip select Input
RAS
Row Address Strobe
CAS
ColumnAddress Strobe
WE
Write Enable
DQM0-7
DQM
VDD
Power Supply (3.3V)
VSS
Ground
SDA
Serial data I/O
SCL
Serial clock
DNU
Do not use
NC
No Connect
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| WED3DG648V-D1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SDRAM Modules - 144 Pin SO-DIMM. Unbuffered |
| WED3DG648V-D2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SDRAM Modules - 168 Pin DIMM. Unbuffered |
| WED3DG649V10D1 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:64MB- 8Mx64 SDRAM, UNBUFFERED |
| WED3DG649V10D2 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:64MB- 8M x 64 SDRAM UNBUFFERED |
| WED3DG649V75D1 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:64MB- 8Mx64 SDRAM, UNBUFFERED |
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