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參數(shù)資料
| 型號(hào)： | WED3DG644V75WD1I-MG |
| 廠商： | MICROSEMI CORP-PMG MICROELECTRONICS |
| 元件分類： | DRAM |
| 英文描述： | 4M X 64 SYNCHRONOUS DRAM MODULE, ZMA144 |
| 封裝： | ROHS COMPLIANT, SODIMM-144 |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大小： | 199K |
| 代理商： | WED3DG644V75WD1I-MG |
WED3DG644V-D1
White Electronic Designs
1
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
September 2007
Rev. 5
Pin
Front
Pin
Back
Pin
Front
Pin
Back
Pin
Back
Pin
Back
1VSS
2VSS
51
DQ14
52
DQ46
95
DQ21
96
DQ53
3
DQ0
4
DQ32
53
DQ15
54
DQ47
97
DQ22
98
DQ54
5
DQ1
6
DQ33
55
VSS
56
VSSv
99
DQ23 100 DQ55
7
DQ2
8
DQ34
57
NC
58
NC
101
VCC
102
VCC
9
DQ3
10
DQ35
59
NC
60
NC
103
A6
104
A7
11
VCC
12
VCC
VOLTAGE KEY
105
A8
106
BA0
13
DQ4
14
DQ36
107
VSS
108
VSS
15
DQ5
16
DQ37
109
A9
110
BA1
17
DQ6
18
DQ38
61
CLK0
62
CKE0 111 A10/AP 112
A11
19
DQ7
20
DQ39
63
VCC
64
VCC
113
VCC
114
VCC
21
VSS
22
VSS
65
RAS#
66
CAS# 115 DQM2 116 DQM6
23 DQM0 24 DQM4 67
WE#
68 *CKE1 117 DQM3 118 DQM7
25 DQM1 26 DQM5 69
CS0#
70
*A12
119
VSS
120
VSS
27
VCC
28
VCC
71 *CS1# 72
*A13
121 DQ24 122 DQ56
29
A0
30
A3
73
DNU
74
*CK1 123 DQ25 124 DQ57
31
A1
32
A4
75
VSS
76
VSS
125 DQ26 126 DQ58
33
A2
34
A5
77
NC
78
NC
127 DQ27 128 DQ59
35
VSS
36
VSS
79
NC
80
NC
129
VCC
130
VCC
37
DQ8
38
DQ40
81
VCC
82
VCC
131 DQ28 132 DQ60
39
DQ9
40
DQ41
83
DQ16
84
DQ48 133 DQ29 134 DQ61
41
DQ10
42
DQ42
85
DQ17
86
DQ49 135 DQ30 136 DQ62
43
DQ11
44
DQ43
87
DQ18
88
DQ50 137 DQ31 138 DQ63
45
VCC
46
VCC
89
DQ19
90
DQ51 139
VSS
140
VSS
47
DQ12
48
DQ44
91
VSS
92
VSS
141 **SDA 142 **SCL
49
DQ13
50
DQ45
93
DQ20
94
DQ52 143
VCC
144
VCC
32MB – 4Mx64 SDRAM, UNBUFFERED
DESCRIPTION
The WED3DG644V is a 4Mx64 synchronous DRAM
module which consists of four 4Mx16 SDRAM components
in TSOP II package, and one 2Kb EEPROM in an 8
pin TSOP 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.
NOTE: Consult factory for availability of:
RoHS compliant products
Vendor source control options
Industrial temperature option
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
D1: 27.94 (1.10”)
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
PIN NAMES
* These pins are not used in this module.
** These pins should be NC in the system
which does not support SPD.
A0 – A11
Address input (Multiplexed)
BA0-1
Select Bank
DQ0-63
Data Input/Output
CLK0
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
*VREF
Power supply for reference
SDA
Serial data I/O
SCL
Serial clock
DNU
Do not use
NC
No Connect
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| WED3DG644V-D1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SDRAM Modules - 144 Pin SO-DIMM. Unbuffered |
| WED3DG644V-D2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SDRAM Modules - 168 Pin DIMM. Unbuffered |
| WED3DG6463V-D2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SDRAM Modules - 168 Pin DIMM. Unbuffered |
| WED3DG6464V-D1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SDRAM Modules - 144 Pin SO-DIMM. Unbuffered. w/PLL |
| WED3DG6464V-D2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SDRAM Modules - 168 Pin DIMM. Unbuffered |
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