W3DG7264V-D1
-JD1
White Electronic Designs
PRELIMINARY*
512MB – 2x32Mx72 SDRAM, UNBUFFERED w/PLL
FEATURES
DESCRIPTION
Burst Mode Operation
The W3DG7264V is a 2x32Mx72 synchronous DRAM
module which consists of eighteen 32Mx8 stack SDRAM
components in TSOP II package, and one 2Kb EEPROM
in an 8 pin TSSOP package for Serial Presence Detect
which are mounted on a 144 pin SO-DIMM multilayer
FR4 Substrate.
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
* This product is under development, is not qualified or characterized and is subject to
change without notice.
Programmable Burst Lengths: 1, 2, 4, 8 or Full
Page
NOTE: Consult factory for availability of:
• Lead-Free Products
• Vendor source control options
• Industrial temperature options
3.3V ± 0.3V Power Supply
144 Pin SO-DIMM JEDEC
• JD1: 31.75 (1.25”)
PIN NAMES
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
PINOUT
PIN
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
FRONT
VSS
DQ0
DQ1
DQ2
DQ3
VCC
DQ4
DQ5
DQ6
DQ7
VSS
DQM0
DQM1
VCC
A0
A1
A2
VSS
DQ8
DQ9
DQ10
DQ11
VCC
DQ12
PIN
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
BACK
VSS
DQ32
DQ33
DQ34
DQ35
VCC
DQ36
DQ37
DQ38
DQ39
VSS
DQM4
DQM5
VCC
A3
A4
A5
VSS
DQ40
DQ41
DQ42
DQ43
VCC
DQ44
PIN
49
51
53
55
57
59
61
63
65
67
69
71
73
75
77
79
81
83
85
87
89
91
93
95
FRONT
DQ13
DQ14
DQ15
VSS
CB0
CB1
CLK0
VCC
RAS#
WE#
CS0#
CS1#
NC
VSS
CB2
CB3
VCC
DQ16
DQ17
DQ18
DQ19
VSS
DQ20
DQ21
PIN
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
BACK
DQ45
DQ46
DQ47
VSS
CB4
CB5
CKE0
VCC
CAS#
CKE1
A12
NC
NC
VSS
CB6
CB7
VCC
DQ48
DQ49
DQ50
DQ51
VSS
DQ52
DQ53
PIN
97
99
101
103
105
107
109
111
113
115
117
119
121
123
125
127
129
131
133
135
137
139
141
143
FRONT
DQ22
DQ23
VCC
A6
A8
VSS
A9
A10
VCC
DQM2
DQM3
VSS
DQ24
DQ25
DQ26
DQ27
VCC
DQ28
DQ29
DQ30
DQ31
VSS
SDA
VCC
PIN
98
100
102
104
106
108
110
112
114
116
118
120
122
124
126
128
130
132
134
136
138
140
142
144
BACK
DQ54
DQ55
VCC
A7
BA0
VSS
BA1
A11
VCC
DQM6
DQM7
VSS
DQ56
DQ57
DQ58
DQ59
VCC
DQ60
DQ61
DQ62
DQ63
VSS
SCL
VCC
A0 – A12
BA0-1
DQ0-63
CLK0
CB0-7
CKE0,CKE1
CS0#,CS1#
RAS#
CAS#
WE#
DQM0-7
VCC
VSS
SDA
SCL
Address Input (Multiplexed)
Select Bank
Data Input/Output
Clock Input
Check Bit (Data-In/Data-Out)
Clock Enable Input
Chip Select Input
Row Address Strobe
Column Address Strobe
Write Enable
DQM
Power Supply (3.3V)
Ground
Serial Data I/O
Serial Clock
DNU
NC
Do Not Use
No Connect
* These pins are not used in this module.
** 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.
March 2005
Rev. 2
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
