1
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG6433V-D2
June, 2003
Rev.1
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
256MB- 32Mx64 SDRAM UNBUFFERED
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
3.3 V 0.3V Power Supply
168 Pin DIMM JEDEC
The W3DG6433V is a 32Mx64 synchronous DRAM
module which consists of four 32Mx16 SDRAM
components in TSOP 11 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.
DESCRIPTION
FEATURES
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
PIN NAMES
*WP (write protect) option is available on Pin 81,
see ordering information on page 5.
**These pins should be NC in the system which
does not support SPD.
A0 A12
Address input (Multiplexed)
BA0-1
Select Bank
DQ0-63
Data Input/Output
CK0,CK2
Clock input
CKE0
Clock Enable input
CS0#,CS2#
Chip select Input
RAS#
Row Address Strobe
CAS#
Column Address Strobe
WE#
Write Enable
DQM0-7#
DQM
V
CC
Power Supply (3.3V)
V
SS
Ground
SDA
Serial data I/O
SCL
Serial clock
DNU
Do not use
NC
No Connect
Pin
Front
Pin
Front
Pin
Front
Pin
Back
Pin
Back
Pin
Back
1
V
SS
29
DQM1
57
DQ18
85
V
SS
113
DQM5
141
DQ50
2
DQ0
30
CS0#
58
DQ19
86
DQ32
114
CS1#
142
DQ51
3
DQ1
31
DNU
59
V
CC
87
DQ33
115
RAS#
143
V
CC
4
DQ2
32
V
SS
60
DQ20
88
DQ34
116
V
SS
144
DQ52
5
DQ3
33
A0
61
NC
89
DQ35
117
A1
145
NC
6
V
CC
34
A2
62
NC
90
V
CC
118
A3
146
NC
7
DQ4
35
A4
63
NC
91
DQ36
119
A5
147
DNU
8
DQ5
36
A6
64
V
SS
92
DQ37
120
A7
148
V
SS
9
DQ6
37
A8
65
DQ21
93
DQ38
121
A9
149
DQ53
10
DQ7
38
A10/AP
66
DQ22
94
DQ39
122
BA0
150
DQ54
11
DQ8
39
BA1
67
DQ23
95
DQ40
123
A11
151
DQ55
12
V
SS
40
V
CC
68
V
SS
96
V
SS
124
V
CC
152
V
SS
13
DQ9
41
V
CC
69
DQ24
97
DQ41
125
NC
153
DQ56
14
DQ10
42
CK0
70
DQ25
98
DQ42
126
A12
154
DQ57
15
DQ11
43
V
SS
71
DQ26
99
DQ43
127
V
SS
155
DQ58
16
DQ12
44
DNU
72
DQ27
100
DQ44
128
CKE0
156
DQ59
17
DQ13
45
CS2#
73
V
CC
101
DQ45
129
NC
157
V
CC
18
V
CC
46
DQM2
74
DQ28
102
V
CC
130
DQM6
158
DQ60
19
DQ14
47
DQM3
75
DQ29
103
DQ46
131
DQM7
159
DQ61
20
DQ15
48
DNU
76
DQ30
104
DQ47
132
NC
160
DQ62
21
NC
49
V
CC
77
DQ31
105
NC
133
V
CC
161
DQ63
22
NC
50
NC
78
V
SS
106
NC
134
NC
162
V
SS
23
V
SS
51
NC
79
CK2
107
V
SS
135
NC
163
NC
24
NC
52
NC
80
NC
108
NC
136
NC
164
NC
25
NC
53
NC
81
*WP
109
NC
137
NC
165
**SA0
26
V
CC
54
V
SS
82
**SDA
110
V
CC
138
V
SS
166
**SA1
27
WE#
55
DQ16
83
**SCL
111
CAS#
139
DQ48
167
**SA2
28
DQM0
56
DQ17
84
V
CC
112
DQM4
140
DQ49
168
V
CC
2
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG6433V-D2
June, 2003
Rev.1
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
FUNCTIONAL BLOCK DIAGRAM
CK0,CK2
CS0#
CKE0
WE#,RAS#,CAS#
BA0,BA1,A0-A12
DQ0-7
DQ0-7
LDQM
DQMB0
DQ8-15
DQ8-15
UDQM
DQMB1
U0
DQ0-7
LDQM
DQ8-15
UDQM
DQ32-39
DQMB4
DQ40-47
DQMB5
U2
DQ0-7
LDQM
DQ8-15
UDQM
DQ16-23
DQMB2
DQ24-31
DQMB3
U1
DQ0-7
LDQM
DQ8-15
UDQM
DQ48-55
DQMB6
DQ56-63
DQMB7
U3
SDA
SCL
U5
SERIAL PD
EEPROM
CS2#
3
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG6433V-D2
June, 2003
Rev.1
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
(Voltage Referenced to: V
SS
= 0V, 0C
T
A
70C)
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Value
Units
Voltage on any pin relative to V
SS
V
IN
, V
OUT
-1.0 ~ 4.6
V
Voltage on V
CC
supply relative to V
SS
V
CC
, V
CCQ
-1.0 ~ 4.6
V
Storage Temperature
T
STG
-55 ~ +150
C
Power Dissipation
P
D
4
W
Short Circuit Current
I
OS
50
mA
Note:
Permanent device damage may occur if "ABSOLUTE MAXIMUM RATINGS" are exceeded.
Functional operation should be restricted to recommended operating condition.
Exposure to higher than recommended voltage for extended periods of time could affect
device
reliability.
RECOMMENDED DC OPERATING CONDITIONS
Parameter
Symbol
Min
Typ
Max
Unit
Note
Supply Voltage
V
CC
3.0
3.3
3.6
V
Input High Voltage
V
IH
2.0
3.0
V
CCQ
+0.3
V
1
Input Low Voltage
V
IL
-0.3
--
0.8
V
2
Output High Voltage
V
OH
2.4
--
--
V
I
OH
= -2mA
Output Low Voltage
V
OL
--
--
0.4
V
I
OL
= -2mA
Input Leakage Current
I
LI
-10
--
10
A
3
Note: 1.
V
IH
(max)= 5.6V AC. The overshoot voltage duration is
3ns.
2.
V
IL
(min)= -2.0V AC. The undershoot voltage duration is
3ns.
3.
Any
input
0V
V
IN
V
CCQ
Input leakage currents include Hi-Z output leakage for all bi-directional buffers with Tri-State
outputs.
CAPACITANCE
(T
A
= 23C, F = 1MH
Z
, V
CC
= 3.3V, V
REF
= 1.4V 6200MV)
Parameter
Symbol
Max
Unit
Input Capacitance (A0-A12)
C
IN1
25
pF
Input Capacitance (RAS#,CAS#,WE#)
C
IN2
25
pF
Input Capacitance (CKE0)
C
IN3
25
pF
Input Capacitance (CK0,CK2)
C
IN4
13
pF
Input Capacitance (CS0#,CS2#)
C
IN5
15
pF
Input Capacitance (DQM0-DQM7)
C
IN6
10
pF
Input Capacitance (BA0-BA1)
C
IN7
25
pF
Data input/output capacitance (DQ0-DQ63)
C
OUT
12
pF
4
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG6433V-D2
June, 2003
Rev.1
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
OPERATING CURRENT CHARACTERISTICS
(V
CC
= 3.3V, 0C
T
A
70C)
Notes: 1. Measured with outputs open.
2. Refresh period is 64ms.
3. Unless otherwise noticed, input swing level is CMOS (V
IH
/V
IL
= V
CCQ
/V
SSQ
)
Parameter
Symbol
Conditions
Version
Units
Note
133
100
Operating Current
(One bank active)
I
CC1
Burst Length = 1
t
RC
t
RC
(min)
I
OL
= 0mA
600
560
mA
1
Precharge Standby Current
in Power Down Mode
I
CC2P
CKE
V
IL
(max), t
CC
= 10ns
10
mA
I
CC2PS
CKE & CK
V
IL
(max), t
CC
=
10
Precharge Standby Current
in Non-Power Down Mode
I
CC2N
CKE
V
IH
(min), CS
V
IH
(min), t
CC
= 10ns
Input signals are charged one time during 20
70
mA
I
CC2NS
CKE
V
IH
(min), CK
V
IL
(max), t
CC
=
Input signls are stable
60
Active standby current in
power-down mode
I
CC3P
CKE
V
IL
(max), t
CC
= 10ns
25
mA
I
CC3PS
CKE & CK
V
IL
(max), t
CC
=
25
Active standby current in
non power-down mode
I
CC3N
CKE
V
IH
(min), CS#
V
IH
(min), t
CC
= 10ns
Input signals are changed one time during
20ns
140
mA
I
CC3NS
CKE
V
IH
(min), CK
V
IL
(max), t
CC
=
input signals are stable
120
Operating current (Burst
mode)
I
CC4
Io = mA
Page burst
4 Banks activated
t
CCD
= 2CK
720
580
mA
1
Refresh current
I
CC5
t
RC
t
RC
(min)
840
800
mA
2
Self refresh current
I
CC6
CKE
0.2V
20
mA
5
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG6433V-D2
June, 2003
Rev.1
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
ALL DIMENSIONS ARE IN INCHES
PACKAGE DIMENSIONS
5.255 MAX.
.125 (2X)
.157 (2X)
.350
.450
.614
1.450
.250
2.275
4.550
2.150
.250
278
.150 MAX.
.700
1.000
MAX.
.157
MIN.
.050 .004
ORDERING INFORMATION
Part Number
Speed
CAS Latency
W3DG6433V10D2
100MHz
CL=2
W3DG6433V75D2
133MHz
CL=3
Part Number
Speed
CAS Latency
WED3DG6333V10D2
100MHz
CL=2
WED3DG6333V75D2
133MHz
CL=3
Note: Available with WP (write protection) on Pin 81.
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