White Electronic Designs
256MB- 32Mx64 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
168 pin DIMM JEDEC
W3DG6432V-D2
DESCRIPTION
The W3DG6432V is a 32Mx64 synchronous DRAM
module which consists of eight 16Mx16 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.
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Front
V
SS
DQ0
DQ1
DQ2
DQ3
V
CC
DQ4
DQ5
DQ6
DQ7
DQ8
V
SS
DQ9
DQ10
DQ11
DQ12
DQ13
V
CC
DQ14
DQ15
NC
NC
V
SS
NC
NC
V
CC
WE#
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
V
SS
A0
A2
A4
A6
A8
A10/AP
BA1
V
CC
V
CC
CK0
V
SS
DNU
CS2#
DQM2
DQM3
DNU
V
CC
NC
NC
NC
NC
V
SS
DQ16
DQ17
Pin
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
Front
DQ18
DQ19
V
CC
DQ20
NC
NC
CKE1
V
SS
DQ21
DQ22
DQ23
V
SS
DQ24
DQ25
DQ26
DQ27
V
CC
DQ28
DQ29
DQ30
DQ31
V
SS
CK2
NC
*WP
**SDA
**SCL
V
CC
Pin
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
Back
V
SS
DQ32
DQ33
DQ34
DQ35
V
CC
DQ36
DQ37
DQ38
DQ39
DQ40
V
SS
DQ41
DQ42
DQ43
DQ44
DQ45
V
CC
DQ46
DQ47
NC
NC
V
SS
NC
NC
V
CC
CAS#
DQM4
Pin
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
Back
DQM5
CS1#
RAS#
V
SS
A1
A3
A5
A7
A9
BA0
A11
V
CC
NC
A12
V
SS
CKE0
CS3#
DQM6
DQM7
NC
V
CC
NC
NC
NC
NC
V
SS
DQ48
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
V
CC
DQ52
NC
NC
DNU
V
SS
DQ53
DQ54
DQ55
V
SS
DQ56
DQ57
DQ58
DQ59
V
CC
DQ60
DQ61
DQ62
DQ63
V
SS
NC
NC
**SA0
**SA1
**SA2
V
CC
PIN NAMES
A0 – A12
BA0-1
DQ0-63
CK0,CK2
CKE0,CKE1
CS0#-CS3#
RAS#
CAS#
WE#
DQM0-7
V
CC
V
SS
SDA
SCL
DNU
NC
Address input (Multiplexed)
Select Bank
Data Input/Output
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
* WP (write protect) option available on pin 81,
see ordering information on page 5.
** 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 2003 Rev. 1
ECO #16361
1
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
White Electronic Designs
FUNCTIONAL BLOCK DIAGRAM
CS0#
CS1#
CKE0
CKE1
CK0
CK2
WE#, RAS#, CAS#
BA0, BA1, A0-A12
W3DG6432V-D2
DQ0-7
LDQM
DQ0-7
LDQM
DQ0-7
DQMB0
DQ0-7
LDQM
DQ0-7
LDQM
DQ32-39
DQMB4
U0
DQ8-15
UDQM
CS2#
CS3#
U4
DQ8-15
UDQM
DQ8-15
DQMB1
U2
DQ8-15
UDQM
U6
DQ8-15
UDQM
DQ40-47
DQMB5
DQ0-7
LDQM
DQ0-7
LDQM
DQ16-23
DQMB2
DQ0-7
LDQM
DQ0-7
LDQM
DQ48-55
DQMB6
U1
DQ8-15
UDQM
U5
DQ8-15
UDQM
DQ24-31
DQMB3
U3
DQ8-15
UDQM
U7
DQ8-15
UDQM
DQ56-63
DQMB7
SCL
U5
SERIAL
PD
EEPROM
SDA
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June 2003 Rev. 1
ECO #16361
2
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
White Electronic Designs
Absolute Maximum Ratings
Parameter
Voltage on any pin relative to V
SS
Voltage on V
CC
supply relative to V
SS
Storage Temperature
Power Dissipation
Short Circuit Current
Symbol
V
IN
, V
OUT
V
CC
, V
CCQ
T
STG
P
D
I
OS
Value
-1.0 ~ 4.6
-1.0 ~ 4.6
-55 ~ +150
8
50
W3DG6432V-D2
Units
V
V
°C
W
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
(Voltage Referenced to: V
SS
= 0V, 0°C
≤
T
A
≤
70°C)
Parameter
Supply Voltage
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Input Leakage Current
Symbol
V
CC
V
IH
V
IL
V
OH
V
OL
I
LI
Min
3.0
2.0
-0.3
2.4
—
-10
Typ
3.3
3.0
—
—
—
—
Max
3.6
V
CCQ
+0.3
0.8
—
0.4
10
Unit
V
V
V
V
V
A
1
2
I
OH
= -2mA
I
OL
= -2mA
3
Note
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
= 23°C, f = 1MHz, V
CC
= 3.3V, V
REF
=1.4V
±
200mV)
Parameter
Input Capacitance (A0-A12)
Input Capacitance (RAS#,CAS#,WE#)
Input Capacitance (CKE0)
Input Capacitance (CK0,CK2)
Input Capacitance (CS0#,CS2#)
Input Capacitance (DQM0-DQM7)
Input Capacitance (BA0-BA1)
Data input/output capacitance (DQ0-DQ63)
Symbol
C
IN
1
C
IN
2
C
IN
3
C
IN
4
C
IN
5
C
IN
6
C
IN
7
C
OUT
Min
-
-
-
-
-
-
-
-
Max
45
45
25
13
15
10
45
12
Unit
pF
pF
pF
pF
pF
pF
pF
pF
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June 2003 Rev. 1
ECO #16361
3
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
White Electronic Designs
OPERATING CURRENT CHARACTERISTICS
(V
CC
= 3.3V, 0°C
≤
T
A
≤
70°C)
Parameters
Operating Current
(One bank active)
Precharge Standby Current
in Power Down Mode
Precharge Standby Current
in Non-Power Down Mode
Symbol
I
CC1
Conditions
Burst Length = 1
t
RC
≥
t
RC
(min)
I
OL
= 0mA
CKE
≤
V
IL
(max), t
CC
= 10ns
CKE & CK
≤
V
IL
(max), t
CC
=
∞
CKE
≥
V
IH
(min), CS
≥
V
IH
(min), t
CC
=10ns
Input signals are charged one time during 20
CKE
≥
V
IH
(min), CK
≤
V
IL
(max), t
CC
=
∞
Input signals are stable
CKE
≥
V
IL
(max), t
CC
= 10ns
CKE & CK
≤
V
IL
(max), t
CC
=
∞
CKE
≥
V
IH
(min), CS
≥
V
IH
(min), t
CC
= 10ns
Input signals are charged one time during 20ns
CKE
≥
V
IH
(min), CK
≤
V
IL
(max), t
CC
=
∞
input signals are stable
Io = mA
Page burst
4 Banks activated
t
CCD
= 2CK
t
RC
≥
t
RC
(min)
CKE
≤
0.2V
860
W3DG6432V-D2
Versions
133
740
20
20
130
115
50
50
280
240
100
700
Units
mA
Note
1
I
CC2P
I
CC2PS
I
CC2N
I
CC2NS
mA
mA
mA
mA
mA
Active standby current in power-
down mode
Active standby in current non
power-down mode
I
CC3P
I
CC3PS
I
CC3N
I
CC3NS
mA
mA
mA
720
mA
mA
2
1
Operating current (Burst mode)
I
CC4
Refresh current
Self refresh current
I
CC5
I
CC6
980
40
940
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
CC
/V
SSQ
)
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June 2003 Rev. 1
ECO #16361
4
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
White Electronic Designs
ORDERING INFORMATION
Part Number
W3DG6432V10D2
W3DG6432V7D2
W3DG6432V75D2
Speed
100MHz
133MHz
133MHz
CAS Latency
CL=2
CL=2
CL=3
Part Number
WED3DG6332V10D2
WED3DG6332V7D2
WED3DG6332V75D2
W3DG6432V-D2
Speed
100MHz
133MHz
133MHz
CAS Latency
CL=2
CL=2
CL=3
Note: Modules are available in industrial temperature - 40°C to 85°C. Add an "I"
to the end of the part number.
Note: Available with WP (write protect) on pin 81.
PACKAGE DIMENSIONS
5.255 MAX.
.125 (2X)
278
.150 MAX.
.157 (2X)
P1
.700
1.000
MAX.
.450
.614
.250
1.450
.250
2.275
4.550
2.150
.157
MIN.
.350
.050 ± .004
ALL DIMENSIONS ARE IN INCHES
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June 2003 Rev. 1
ECO #16361
5
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
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