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W3EG72256S-JD3 Datasheet(PDF) 2 Page - White Electronic Designs Corporation

Part # W3EG72256S-JD3
Description  2GB-256Mx72 DDR SDRAM REGISTERED ECC w/PLL
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Manufacturer  WEDC [White Electronic Designs Corporation]
Direct Link  http://www.whiteedc.com
Logo WEDC - White Electronic Designs Corporation

W3EG72256S-JD3 Datasheet(HTML) 2 Page - White Electronic Designs Corporation

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White Electronic Designs
W3EG72256S-JD3
-AJD3
2
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
December 2004
Rev. 2
PRELIMINARY
PIN
SYMBOL
PIN
SYMBOL
PIN
SYMBOL
PIN
SYMBOL
1VREF
47
DQS8
93
VSS
139
VSS
2
DQ0
48
A0
94
DQ4
140
DQS17
3VSS
49
CB2
95
DQ5
141
A10
4
DQ1
50
VSS
96
VCCQ
142
CB6
5
DQS0
51
CB3
97
DQS9
143
VCCQ
6
DQ2
52
BA1
98
DQ6
144
CB7
7VCC
53
DQ32
99
DQ7
145
VSS
8DQ3
54
VCCQ
100
VSS
146
DQ36
9
NC
55
DQ33
101
NC
147
DQ37
10
RESET#
56
DQS4
102
NC
148
VCC
11
VSS
57
DQ34
103
NC
149
DQS13
12
DQ8
58
VSS
104
VCCQ
150
DQ38
13
DQ9
59
BA0
105
DQ12
151
DQ39
14
DQS1
60
DQ35
106
DQ13
152
VSS
15
VCCQ
61
DQ40
107
DQS10
153
DQ44
16
NC
62
VCCQ
108
VCC
154
RAS#
17
NC
63
WE#
109
DQ14
155
DQ45
18
VSS
64
DQ41
110
DQ15
156
VCCQ
19
DQ10
65
CAS#
111
CKE1
157
CS0#
20
DQ11
66
VSS
112
VCCQ
158
NC
21
CKE0
67
DQS5
113
NC
159
DQS14
22
VCCQ
68
DQ42
114
DQ20
160
VSS
23
DQ16
69
DQ43
115
A12
161
DQ46
24
DQ17
70
VCC
116
VSS
162
DQ47
25
DQS2
71
NC
117
DQ21
163
NC
26
VSS
72
DQ48
118
A11
164
VCCQ
27
A9
73
DQ49
119
DQS11
165
DQ52
28
DQ18
74
VSS
120
VCC
166
DQ53
29
A7
75
NC
121
DQ22
167
A13
30
VCCQ
76
NC
122
A8
168
VCC
31
DQ19
77
VCCQ
123
DQ23
169
DQS15
32
A5
78
DQS6
124
VSS
170
DQ54
33
DQ24
79
DQ50
125
A6
171
DQ55
34
VSS
80
DQ51
126
DQ28
172
VCCQ
35
DQ25
81
VSS
127
DQ29
173
NC
36
DQS3
82
VCCID
128
VCCQ
174
DQ60
37
A4
83
DQ56
129
DQS12
175
DQ61
38
VCC
84
DQ57
130
A3
176
VSS
39
DQ26
85
VCC
131
DQ30
177
DQS16
40
DQ27
86
DQS7
132
VSS
178
DQ62
41
A2
87
DQ58
133
DQ31
179
DQ63
42
VSS
88
DQ59
134
CB4
180
VCCQ
43
A1
89
VSS
135
CB5
181
SA0
44
CB0
90
NC
136
VCCQ
182
SA1
45
CB1
91
SDA
137
CK0
183
SA2
46
VCC
92
SCL
138
CK0#
184
VCCSPD
PIN CONFIGURATION
A0-A13
Address input (Multiplexed)
BA0-BA1
Bank Select Address
DQ0-DQ63
Data Input/Output
CB0-CB7
Check bits
DQS0-DQS17
Data Strobe Input/Output
CK0
Clock Input
CK0#
Clock Input
CKE0, CKE1
Clock Enable input
CS0#
Chip Select Input
RAS#
Row Address Strobe
CAS#
Column Address Strobe
WE#
Write Enable
VCC
Power Supply
VCCQ
Power Supply for DQS
VSS
Ground
VREF
Power Supply for Reference
VCCSPD
Serial EEPROM Power Supply
SDA
Serial data I/O
SCL
Serial clock
SA0-SA2
Address in EEPROM
VCCID
VCC Indentification Flag
NC
No Connect
RESET#
Reset Enable
PIN NAMES


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