W3DG647V-D1 Datasheet, PDF (1/5 Pages) White Electronic Designs Corporation – 64MB- 8Mx64 SDRAM UNBUFFERED

White Electronic Designs
W3DG647V-D1
64MB- 8Mx64 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
144 Pin SO-DIMM JEDEC
DESCRIPTION
The W3DG647V is a 8Mx64 synchronous DRAM module
which consists of eight 8Mx8 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.
* This product is subject to change without notice.
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
Pin Front
1
VSS
3
DQ0
5
DQ1
7
DQ2
9
DQ3
11
VCC
13 DQ4
15 DQ5
17 DQ6
19 DQ7
21
VSS
23 DQM0
25 DQM1
27
VCC
29
A0
31
A1
33
A2
35
VSS
37 DQ8
39 DQ9
41 DQ10
43 DQ11
45
VCC
47 DQ12
49 DQ13
Pin Back
2
VSS
4 DQ32
6 DQ33
8 DQ34
10 DQ35
12
VCC
14 DQ36
16 DQ37
18 DQ38
20 DQ39
22
VSS
24 DQM4
26 DQM5
28
VCC
30
A3
32
A4
34
A5
36
VSS
38 DQ40
40 DQ41
42 DQ42
44 DQ43
46
VCC
48 DQ44
50 DQ45
Pin Front
51 DQ14
53 DQ15
55
VSS
57
NC
59
NC
Pin Back
52 DQ46
54 DQ47
56
VSS
58
NC
60
NC
VOLTAGE KEY
61 CLK0
63
VCC
65 RAS#
67 WE#
69 CS0#
71
NC
73 DNU
75
VSS
77
NC
79
NC
81
VCC
83 DQ16
85 DQ17
87 DQ18
89 DQ19
91
VSS
93 DQ20
62 CKE0
64
VCC
66 CAS#
68
NC
70
NC
72
NC
74 CK1
76
VSS
78
NC
80
NC
82
VCC
84 DQ48
86 DQ49
88 DQ50
90 DQ51
92
VSS
94 DQ52
Pin Front
Pin Back
95 DQ21
96 DQ53
97 DQ22
98 DQ54
99 DQ23 100 DQ55
101
VCC
102
VCC
103
A6
104 A7
105
A8
106 BA0
107
VSS
108
VSS
109
A9
110 BA1
111 A10/AP 112 A11
113
VCC
114
VCC
115 DQM2 116 DQM6
117 DQM3 118 DQM7
119
VSS
120
VSS
121 DQ24 122 DQ56
123 DQ25 124 DQ57
125 DQ26 126 DQ58
127 DQ27 128 DQ59
129
VCC
130
VCC
131 DQ28 132 DQ60
133 DQ29 134 DQ61
135 DQ30 136 DQ62
137 DQ31 138 DQ63
139
VSS
140
VSS
141 **SDA 142 **SCL
143
VCC
144
VCC
PIN NAMES
A0 – A11 Address input (Multiplexed)
BA0-1
Select Bank
DQ0-63
Data Input/Output
CLK0,CK1 Clock input
CKE0
Clock Enable input
CS0#
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
**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 • [phone] • www.wedc.com