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PDF W3DG7234V-D2 Data sheet ( Hoja de datos )
| Número de pieza | W3DG7234V-D2 | |
| Descripción | SDRAM UNBUFFERED | |
| Fabricantes | White Electronic Designs | |
| Logotipo |  |
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White Electronic Designs
W3DG7234V-D2
PRELIMINARY*
256MB- 32Mx72 SDRAM UNBUFFERED
FEATURES
DESCRIPTION
PC1000 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: 2, 3, 4, 8 or Full
Page
JEDEC standard 168 pin DIMM package
Power supply: 3.3V ± 0.3V
www.DataSheet4U.com
The W3DG7234V is organized as a 2x16Mx72 synchronous
DRAM module which consists of eighteen 16Mx8 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.
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 CB0
22 CB1
23 VSS
24 NC
25 NC
26 VCC
27 WE#
28 DQM0
Pin
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
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
57 DQ18 85 VSS 113
58 DQ19 86 DQ32 114
59 VCC 87 DQ33 115
60 DQ20 88 DQ34 116
61 NC 89 DQ35 117
62 NC 90 VCC 118
63 CKE1 91 DQ36 119
64 VSS 92 DQ37 120
65 DQ21 93 DQ38 121
66 DQ22 94 DQ39 122
67 DQ23 95 DQ40 123
68 VSS 96 VSS 124
69 DQ24 97 DQ41 125
70 DQ25 98 DQ42 126
71 DQ26 99 DQ43 127
72 DQ27 100 DQ44 128
73 VCC 101 DQ45 129
74 DQ28 102 VCC 130
75 DQ29 103 DQ46 131
76 DQ30 104 DQ47 132
77 DQ31 105 CB4 133
78 VSS 106 CB5 134
79 CK2 107 VSS 135
80 NC 108 NC 136
81 NC 109 NC 137
82 **SDA 110 VCC 138
83 **SCL 111 CAS# 139
84 VCC 112 DQM4 140
Back Pin Back
DQM5 141 DQ50
CS1# 142 DQ51
RAS# 143 VCC
VSS 144 DQ52
A1 145 NC
A3 146 NC
A5 147 NC
A7 148 VSS
A9 149 DQ53
BA0 150 DQ54
A11 151 DQ55
VCC 152 VSS
CK1 153 DQ56
NC 154 DQ57
VSS 155 DQ58
CKE0 156 DQ59
CS3# 157 VCC
DQM6 158 DQ60
DQM7 159 DQ61
NC 160 DQ62
VCC 161 DQ63
NC 162 VSS
NC 163 CK3
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
CK0-CK3
CKE0,CKE1
CS0#-CS3#
RAS#
CAS#
WE#
DQM0-7
VCC
VSS
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
Serial Data I/O
Serial Clock
Address in EEPROM
Do Not Use
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, 2004
Rev. 1
1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
1 page  
White Electronic Designs
W3DG7234V-D2
PRELIMINARY
ORDERING INFORMATION
Part Number
W3DG7234V10D2
W3DG7234V7D2
W3DG7234V75D2
Speed
100MHz
133MHz
133MHz
CAS Latency
CL=2
CL=2
CL=3
Height*
30.48 (1.20")
30.48 (1.20")
30.48 (1.20")
www.Data(03.S.1959h7) eet4U.com
(2X)
PACKAGE DIMENSIONS
133.48
(5.255) MAX.
11.43
(0.450)
8.88
(0.350)
24.49
(0.964)
1.98
(0.078)
(2X)
6.35
(0.250)
36.83
(1.450)
42.19
(1.661)
3.18
(0.125)
1.27
54.61 (0.050) TYP.
(2.150)
* ALL DIMENSIONS ARE IN MILLIMETERS AND (INCHES)
3.81
(0.150)
30.48
(1.20)
MAX
17.78
(0.700)
3.99
(0.157)
1.27 ± 0.10
(0.050 ± 0039)
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June, 2004
Rev. 1
5 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet W3DG7234V-D2.PDF ] | |
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