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W3DG7232V-D1 Schematic ( PDF Datasheet ) - White Electronic Designs

Teilenummer W3DG7232V-D1
Beschreibung SDRAM UNBUFFERED
Hersteller White Electronic Designs
Logo White Electronic Designs Logo 




Gesamt 7 Seiten
W3DG7232V-D1 Datasheet, Funktion
White Electronic Designs
W3DG7232V-D1
-JD1
PRELIMINARY*
256MB - 32Mx72 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
• Package height options:
www.DataShJeDe1t:4U31..c7o5m(1.25")
DESCRIPTION
The W3DG7232V is a 32Mx72 synchronous DRAM module
which consists of nine 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 144 Pin SO-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 PIN
1 VSS 2
3 DQ0 4
5 DQ1 6
7 DQ2 8
9 DQ3 10
11 VCC 12
13 DQ4 14
15 DQ5 16
17 DQ6 18
19 DQ7 20
21 VSS 22
23 DQMB0 24
25 DQMB1 26
27 VCC 28
29 A0 30
31 A1 32
33 A2 34
35 VSS 36
37 DQ8 38
39 DQ9 40
41 DQ10 42
43 DQ11 44
45 VCC 46
47 DQ12 48
BACK
VSS
DQ32
DQ33
DQ34
DQ35
VCC
DQ36
DQ37
DQ38
DQ39
VSS
DQB4
DQB5
VCC
A3
A4
A5
VSS
DQ40
DQ41
DQ42
DQ43
VCC
DQ44
PIN FRONT PIN
49 DQ13 50
51 DQ14 52
53 DQ15 54
55 VSS 56
57 CB0 58
59 CB1 60
61 CLK0 62
63 VCC 64
65 RAS# 66
67 WE# 68
69 SO# 70
71 NC 72
73 NC 74
75 VSS 76
77 CB2 78
79 CB3 80
81 VCC 82
83 DQ16 84
85 DQ17 86
87 DQ18 88
89 DQ19 90
91 VSS 92
93 DQ20 94
95 DQ21 96
BACK
DQ45
DQ46
DQ47
VSS
CB4
CB5
CKE0
VCC
CAS#
NC
A12
NC
CLK1
VSS
CB6
CB7
VCC
DQ48
DQ49
DQ50
DQ51
VSS
DQ52
DQ53
PIN FRONT PIN BACK
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 112 A11
113 VCC 114 VCC
115 DQMB2 116 DQMB6
117 DQMB3 118 DQMB7
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 – A12
BA0-1
DQ0-63
CB0-7
CLK0,CK1
CKE0
CS0#
RAS#
CAS#
WE#
DQMB0-7
VCC
VSS
SDA
SCL
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
Do not use
No Connect
September 2004
Rev. 0
1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com






W3DG7232V-D1 Datasheet, Funktion
White Electronic Designs
W3DG7232V-D1
-JD1
PRELIMINARY
PACKAGE DIMENSIONS FOR D1
Ordering Information
Speed
CAS Latency
W3DG7232V10D1
100MHz
CL=2
W3DG7232V7D1
133MHz
CL=2
W3DG7232V75D1
133MHz
CL=3
Note: For industrial temperature range product, add an "I" to the end of the part number.
Height*
31.75 (1.25”)
31.75 (1.25”)
31.75 (1.25”)
PACKAGE DIMENSIONS FOR D1
2.01 (0.079 Min)
www.DataSheet4U.com
67.72
(2.661 Max)
3.81
(0.150)
MAX.
3.99
(0.157)
19.99
(0.787)
31.75
(1.25)
Max
23.14
(0.913)
28.2
(1.112)
32.79
(1.291)
4.60 (0.181)
1.50 (0.059)
* ALL DIMENSIONS ARE IN MILLIMETERS AND (INCHES).
0.99
(0.039)
(± 0.004)
September 2004
Rev. 0
6 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

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