W3DG6432V-D2 Datasheet, PDF (1/5 Pages) White Electronic Designs Corporation – 256MB- 32Mx64 SDRAM UNBUFFERED

White Electronic Designs
W3DG6432V-D2
256MB- 32Mx64 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 W3DG6432V is a 32Mx64 synchronous DRAM
module which consists of eight 16Mx16 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.
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
Pin Front
1
VSS
2
DQ0
3
DQ1
4
DQ2
5
DQ3
6
VCC
7
DQ4
8
DQ5
9
DQ6
10 DQ7
11 DQ8
12
VSS
13 DQ9
14 DQ10
15 DQ11
16 DQ12
17 DQ13
18
VCC
19 DQ14
20 DQ15
21
NC
22
NC
23
VSS
24
NC
25
NC
26
VCC
27 WE#
28 DQM0
Pin Front
29 DQM1
30 CS0#
31 DNU
32
VSS
33
A0
34
A2
35
A4
36
A6
37
A8
38 A10/AP
39 BA1
40
VCC
41
VCC
42 CK0
43
VSS
44 DNU
45 CS2#
46 DQM2
47 DQM3
48 DNU
49
VCC
50
NC
51
NC
52
NC
53
NC
54
VSS
55 DQ16
56 DQ17
Pin Front
57 DQ18
58 DQ19
59
VCC
60 DQ20
61
NC
62
NC
63 CKE1
64
VSS
65 DQ21
66 DQ22
67 DQ23
68
VSS
69 DQ24
70 DQ25
71 DQ26
72 DQ27
73
VCC
74 DQ28
75 DQ29
76 DQ30
77 DQ31
78
VSS
79 CK2
80
NC
81 *WP
82 **SDA
83 **SCL
84
VCC
Pin Back
85
VSS
86 DQ32
87 DQ33
88 DQ34
89 DQ35
90
VCC
91 DQ36
92 DQ37
93 DQ38
94 DQ39
95 DQ40
96
VSS
97 DQ41
98 DQ42
99 DQ43
100 DQ44
101 DQ45
102
VCC
103 DQ46
104 DQ47
105 NC
106 NC
107
VSS
108 NC
109 NC
110
VCC
111 CAS#
112 DQM4
Pin Back
113 DQM5
114 CS1#
115 RAS#
116
VSS
117
A1
118
A3
119
A5
120
A7
121
A9
122 BA0
123
A11
124
VCC
125
NC
126
A12
127
VSS
128 CKE0
129 CS3#
130 DQM6
131 DQM7
132
NC
133
VCC
134
NC
135
NC
136
NC
137
NC
138
VSS
139 DQ48
140 DQ49
PIN NAMES
Pin Back
141 DQ50
142 DQ51
143
VCC
144 DQ52
145 NC
146 NC
A0 – A12
BA0-1
DQ0-63
CK0,CK2
CKE0,CKE1
CS0#-CS3#
Address input (Multiplexed)
Select Bank
Data Input/Output
Clock input
Clock Enable input
Chip select Input
147 DNU
RAS#
Row Address Strobe
148
VSS
CAS#
Column Address Strobe
149 DQ53
150 DQ54
151 DQ55
152
VSS
153 DQ56
154 DQ57
155 DQ58
156 DQ59
WE#
DQM0-7
VCC
VSS
SDA
SCL
DNU
Write Enable
DQM
Power Supply (3.3V)
Ground
Serial data I/O
Serial clock
Do not use
157
VCC
NC
No Connect
158 DQ60
159 DQ61 ^{* WP (write protect) option available on pin 81,}
160 DQ62
see ordering information on page 5.
161 DQ63 ^{** These pins should be NC in the system which}
162
VSS
does not support SPD.
163 NC
164 NC
165 **SA0
166 **SA1
167 **SA2
168
VCC
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June 2003 Rev. 1
ECO #16361
1
White Electronic Designs Corporation • [phone] • www.wedc.com