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參數(shù)資料
| 型號： | WV3DG72256V-AD2 |
| 英文描述： | 2GB - 2x128Mx72 SDRAM, REGISTERED |
| 中文描述： | 2GB的- 2x128Mx72的SDRAM，注冊 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 264K |
| 代理商： | WV3DG72256V-AD2 |
WV3DG72256V-AD2
1
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
January 2006
Rev. 0
PRELIMINARY
2GB – 2x128Mx72 SDRAM, REGISTERED
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
3.3V ± 0.3V Power Supply
Dual Rank
168 Pin DIMM JEDEC
PCB - AD2: 28.58mm (1.125”) TYP
DESCRIPTION
The WV3DG72256V is a 2x128Mx72 synchronous DRAM
module which consists of eighteen 256Mx4 stack SDRAM
com po nents (stacked from 128Mx4) in TSOP II package,
two 18 bit Drive ICs for input control signal and one 2Kb
EEPROM in an 8 pin TSSOP package for Serial Presence
Detect which are mounted on a 168 pin DIMM mul i ay er
FR4 Substrate.
* This product is under development, is not qualified or characterized and is subject to
change without notice.
NOTE: Consult factory for availability of:
RoHS compliant products
Vendor source control options
Industrial temperature option
PIN NAMES
Address Input (Multiplexed)
Select Bank
Data Input/Output
Check Bit (Data-In/Data-Out)
Clock Input
Clock Enable Input
CS0# - CS3#
Chip Select Input
RAS#
Row Address Strobe
CAS#
Column Address Strobe
WE#
Write Enable
DQM0-7
DQM
V
CC
Power Supply (3.3V)
V
SS
Ground
V
REF
Power Supply for Reference
REGE
Register Enable
SDA
Serial Data I/O
SCL
Serial Clock
SA0-2
Address in EEPROM
NC
No Connect
* Pins not used in this module.
A0 – A12
BA0-1
DQ0-63
CB0-7
CLK0
CKE0
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
FRONT
PIN
BACK
PIN
FRONT
V
SS
29
DQM1
57
DQ18
DQ0
30
CS0#
58
DQ19
DQ1
31
NC
59
V
CC
DQ2
32
V
SS
60
DQ20
DQ3
33
A0
61
NC
V
CC
34
A2
62
*VREF
DQ4
35
A4
63
*CKE1
DQ5
36
A6
64
V
SS
DQ6
37
A8
65
DQ21
DQ7
38
A10/AP
66
DQ22
DQ8
39
BA1
67
DQ23
V
SS
40
V
CC
68
V
SS
DQ9
41
V
CC
69
DQ24
DQ10
42
CLK0
70
DQ25
DQ11
43
V
SS
71
DQ26
DQ12
44
NC
72
DQ27
DQ13
45
CS2#
73
V
CC
V
CC
46
DQM2
74
DQ28
DQ14
47
DQM3
75
DQ29
DQ15
48
NC
76
DQ30
CB0
49
V
CC
77
DQ31
CB1
50
NC
78
V
SS
V
SS
51
NC
79
NC
NC
52
CB2
80
NC
NC
53
CB3
81
WP
V
CC
54
V
SS
82
SDA
WE#
55
DQ16
83
SCL
DQM0
56
DQ17
84
V
CC
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
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
NC
A12
V
SS
CKE0
CS3#
DQM6
DQM7
NC
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
REGE
V
SS
DQ53
DQ54
DQ55
V
SS
DQ56
DQ57
DQ58
DQ59
V
CC
DQ60
DQ61
DQ62
DQ63
V
SS
NC
NC
SA0
SA1
SA2
V
CC
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| WV3DG7266V10D1 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB -2x32Mx72 SDRAM, UNBUFFERED, w/PLL |
| WV3DG7266V75D1 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB -2x32Mx72 SDRAM, UNBUFFERED, w/PLL |
| WV3DG7266V7D1 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB -2x32Mx72 SDRAM, UNBUFFERED, w/PLL |
| WV3DG7266V-D1 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB -2x32Mx72 SDRAM, UNBUFFERED, w/PLL |
| WV3EG128M72EFSR262D3MF | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:1GB - 128Mx72 DDR SDRAM REGISTERED w/PLL, FBGA |
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