English
Language : 

W3DG6433V-D2 Datasheet, PDF (1/5 Pages) White Electronic Designs Corporation – 256MB- 32Mx64 SDRAM UNBUFFERED
White Electronic Designs
W3DG6433V-D2
256MB- 32Mx64 SDRAM UNBUFFERED
FEATURES
DESCRIPTION
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
3.3 V ± 0.3V Power Supply
168 Pin DIMM JEDEC
The W3DG6433V is a 32Mx64 synchronous DRAM
module which consists of four 32Mx16 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 168 Pin DIMM multilayer FR4
Substrate.
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
PIN NAMES
Pin Front
Pin
Front
Pin
Front
Pin
Back
Pin
Back
Pin
Back
1
VSS
29
DQM1
57
DQ18
85
VSS
113
DQM5
141
DQ50
2
DQ0
30
CS0#
58
DQ19
86
DQ32
114
CS1#
142
DQ51
3
DQ1
31
DNU
59
VCC
87
DQ33
115
RAS#
143
VCC
4
DQ2
32
VSS
60
DQ20
88
DQ34
116
VSS
144
DQ52
5
DQ3
33
A0
61
NC
89
DQ35
117
A1
145
NC
6
VCC
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
CK0
70
DQ25
98
DQ42
126
A12
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
CK2
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
A0 – A12 Address input (Multiplexed)
BA0-1
Select Bank
DQ0-63 Data Input/Output
CK0,CK2 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
*WP (write protect) option is available on Pin 81,
see ordering information on page 5.
**These pins should be NC in the system which
does not support SPD.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June, 2003
Rev.1
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
 ▷