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W3DG7267V-D2 fiches techniques PDF

White Electronic Designs - SDRAM UNBUFFERED

Numéro de référence W3DG7267V-D2
Description SDRAM UNBUFFERED
Fabricant White Electronic Designs 
Logo White Electronic Designs 





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W3DG7267V-D2 fiche technique
White Electronic Designs
W3DG7267V-D2
PRELIMINARY*
512MB – 2x32Mx72, 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
Power Supply: 3.3V ± 0.3V
JEDEC Standard 168 Pin DIMM Package
www.DataSheet4U.com
DESCRIPTION
The W3DG7267V is organized as a 2x32Mx72 synchronous
DRAM module which consists of eighteen 32Mx8 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 product is under development, is not qualified or characterized and is subject to
change without notice.
NOTE: Consult factory for availability of:
• Lead-Free Products
• Vendor source control options
• Industrial temperature options
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
DQM1
CS0#
DNU
VSS
A0
A2
A4
A6
A8
A10/AP
BA1
VCC
VCC
CK0
VSS
DNU
CS2#
DQM2
DQM3
DNU
VCC
NC
NC
CB2
CB3
VSS
DQ16
DQ17
Pin Front Pin Back Pin Back
57 DQ18 85 VSS 113 DQM5
58 DQ19 86 DQ32 114 CS1#
59 VCC 87 DQ33 115 RAS#
60 DQ20 88 DQ34 116 VSS
61 NC 89 DQ35 117 A1
62 *VREF 90 VCC 118 A3
63 *CKE1 91 DQ36 119 A5
64 VSS 92 DQ37 120 A7
65 DQ21 93 DQ38 121 A9
66 DQ22 94 DQ39 122 BA0
67 DQ23 95 DQ40 123 A11
68 VSS 96 VSS 124 VCC
69 DQ24 97 DQ41 125 CK1
70 DQ25 98 DQ42 126 A12
71 DQ26 99 DQ43 127 VSS
72 DQ27 100 DQ44 128 CKE0
73 VCC 101 DQ45 129 CS3#
74 DQ28 102 VCC 130 DQM6
75 DQ29 103 DQ46 131 DQM7
76 DQ30 104 DQ47 132 *A13
77 DQ31 105 CB4 133 VCC
78 VSS 106 CB5 134 NC
79 CK2 107 VSS 135 NC
80 NC 108 NC 136 CB6
81 NC 109 NC 137 CB7
82 **SDA 110 VCC 138 VSS
83 **SCL 111 CAS# 139 DQ48
84 VCC 112 DQM4 140 DQ49
Pin
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
Back
DQ50
DQ51
VCC
DQ52
NC
*VREF
NC
VSS
DQ53
DQ54
DQ55
VSS
DQ56
DQ57
DQ58
DQ59
VCC
DQ60
DQ61
DQ62
DQ63
VSS
CK3
NC
**SA0
**SA1
**SA2
VCC
PIN NAMES
A0 – A12
BA0-1
DQ0-63
CB0-CB7
Address input (Multiplexed)
Select Bank
Data Input/Output
Check bit (Data-in/data-out)
CK0-CK3
CKE0, CKE1
CS0#,CS3#
RAS#
CAS#
WE#
DQM0-7
VCC
VSS
*VREF
SDA
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
SCL
SA0-2
DNU
NC
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.
January 2005
Rev. 1
1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

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