W3DG727V-D2 Datasheet, PDF (1/5 Pages) White Electronic Designs Corporation – 64MB - 8Mx72 SDRAM UNBUFFERED

White Electronic Designs
W3DG727V-D2
64MB - 8Mx72 SDRAM UNBUFFERED
FEATURES
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 W3DG727V is a 8Mx72 SDRAM module which consists
of nine 8Mx8 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.
* This datasheet describes a product that may or may not be under development and is
subject to change or cancellation without notice.
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
Pin Front Pin
1
VSS
29
2 DQ0 30
3 DQ1 31
4 DQ2 32
5 DQ3 33
6 VCC 34
7 DQ4 35
8 DQ5 36
9 DQ6 37
10 DQ7 38
11 DQ8 39
12 VSS
40
13 DQ9 41
14 DQ10 42
15 DQ11 43
16 DQ12 44
17 DQ13 45
18 VCC
46
19 DQ14 47
20 DQ15 48
21 CB0 49
22 CB1 50
23 VSS
51
24 NC
52
25 NC
53
26 VCC
54
27 WE# 55
28 DQM0 56
Front Pin
DQM1 57
CS0# 58
DNU 59
VSS 60
A0
61
A2
62
A4
63
A6
64
A8
65
A10/AP 66
BA1
67
VCC
68
VCC
69
CLK0 70
VSS
71
DNU 72
CS2# 73
DQM2 74
DQM3 75
DNU 76
VCC
77
NC
78
NC
79
CB2 80
CB3 81
VSS
82
DQ16 83
DQ17 84
Front Pin
DQ18 85
DQ19 86
VCC
87
DQ20 88
NC
89
*VREF 90
*CKE1 91
VSS
92
DQ21 93
DQ22 94
DQ23 95
VSS
96
DQ24 97
DQ25 98
DQ26 99
DQ27 100
VCC
101
DQ28 102
DQ29 103
DQ30 104
DQ31 105
VSS
106
CLK2 107
NC
108
NC
109
**SDA 110
**SCL 111
VCC
112
Back Pin
VSS
113
DQ32 114
DQ33 115
DQ34 116
DQ35 117
VCC
118
DQ36 119
DQ37 120
DQ38 121
DQ39 122
DQ40 123
VSS
124
DQ41 125
DQ42 126
DQ43 127
DQ44 128
DQ45 129
VCC
130
DQ46 131
DQ47 132
CB4 133
CB5 134
VSS
135
NC
136
NC
137
VCC
138
CAS# 139
DQM4 140
Back Pin Back
DQM5 141 DQ50
*CS1# 142 DQ51
RAS# 143 VCC
VSS 144 DQ52
A1
145 NC
A3
146 *VREF
A5
147 NC
A7
148 VSS
A9
149 DQ53
BA0 150 DQ54
A11 151 DQ55
VCC
152 VSS
*CLK1 153 DQ56
*A12 154 DQ57
VSS
155 DQ58
CKE0 156 DQ59
*CS3# 157 VCC
DQM6 158 DQ60
DQM7 159 DQ61
*A13 160 DQ62
VCC 161 DQ63
NC
162 VSS
NC 163 *CLK3
CB6 164 NC
CB7 165 **SA0
VSS
166 **SA1
DQ48 167 **SA2
DQ49 168 VCC
PIN NAMES
A0 – A11
BA0-1
DQ0-63
CB0-7
CLK0,CLK2
CKE0
CS0#,CS2#
RAS#
CAS#
WE#
DQM0-7
VCC
VSS
*VREF
SDA
SCL
SA0-2
DNU
NC
Address input (Multiplexed)
Select Bank
Data Input/Output
Check bit (Data-in/data-out)
Clock input
Clock Enable input
Chip select Input
Row Address Strobe
Column Address Strobe
Write Enable
DQM
Power Supply (3.3V)
Ground
Power supply for reference
Serial data I/O
Serial clock
Address in EEPROM
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.
Sept. 2002
Rev. 0
1
White Electronic Designs Corporation • [phone] • www.wedc.com