White Electronic Designs
64MB- 8Mx64 SDRAM UNBUFFERED
FEATURES
n
n
n
n
n
n
n
n
n
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
WED3DG647V-D1
DESCRIPTION
The WED3DG647V is a 8Mx64 synchronous DRAM
module which consists of eight 8Mx8 SDRAM
components in TSOP II package, and one 2Kb 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 subject to change without notice.
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
Front
V
SS
DQ0
DQ1
DQ2
DQ3
V
CC
DQ4
DQ5
DQ6
DQ7
V
SS
DQM0
DQM1
V
CC
A0
A1
A2
V
SS
DQ8
DQ9
DQ10
DQ11
V
CC
DQ12
DQ13
Pin
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
Back
V
SS
DQ32
DQ33
DQ34
DQ35
V
CC
DQ36
DQ37
DQ38
DQ39
V
SS
DQM4
DQM5
V
CC
A3
A4
A5
V
SS
DQ40
DQ41
DQ42
DQ43
V
CC
DQ44
DQ45
Pin
51
53
55
57
59
Front
DQ14
DQ15
V
SS
NC
NC
Pin
52
54
56
58
60
Back
DQ46
DQ47
V
SS
NC
NC
Pin
95
97
99
101
103
105
107
109
111
113
115
117
119
121
123
125
127
129
131
133
135
137
139
141
143
Front
DQ21
DQ22
DQ23
V
CC
A6
A8
V
SS
A9
A10/AP
V
CC
DQM2
DQM3
V
SS
DQ24
DQ25
DQ26
DQ27
V
CC
DQ28
DQ29
DQ30
DQ31
V
SS
**SDA
V
CC
Pin
96
98
100
102
104
106
108
110
112
114
116
118
120
122
124
126
128
130
132
134
136
138
140
142
144
Back
DQ53
DQ54
DQ55
V
CC
A7
BA0
V
SS
BA1
A11
V
CC
DQM6
DQM7
V
SS
DQ56
DQ57
DQ58
DQ59
V
CC
DQ60
DQ61
DQ62
DQ63
V
SS
**SCL
V
CC
PIN NAMES
A0 – A11
BA0-1
DQ0-63
CLK0,CK1
CKE0
CS0#
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
VOLTAGE KEY
61
63
65
67
69
71
73
75
77
79
81
83
85
87
89
91
93
CLK0
V
CC
RAS#
WE#
CS0#
NC
DNU
V
SS
NC
NC
V
CC
DQ16
DQ17
DQ18
DQ19
V
SS
DQ20
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
CKE0
V
CC
CAS#
NC
NC
NC
CK1
V
SS
NC
NC
V
CC
DQ48
DQ49
DQ50
DQ51
V
SS
DQ52
**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
1
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
White Electronic Designs
FUNCTIONAL BLOCK DIAGRAM
½½½½
½½½½
WED3DG647V-D1
½½½½
½½½
½½½
½½½½½½½½½
½½½½½½½½½½½ ½½½
½½½½½
½½½½
½½½½½
½½½½
½½½½½
½½½½
½½½½½½½
½½½½
½½
½½½
½½
½½½½½½
½½½½
½½½½½
½½½½
½½½½½½½
½½½½
½½
½½½½½½
½½
½½½½½½
½½½
½½½½½
½½½½
½½
½½
½½½½½
½½½½
½½½½½½½
½½½½
½½½½½
½½½½
½½½½½½½
½½½½
½½
½½½½½
½½½½
½½½½½½½
½½½½
½½
½½½½½
½½½½
½½½½½½½
½½½½
½½
½½
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June 2003
Rev. 1
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
WED3DG647V-D1
Units
V
V
°C
W
mA
-55 ~ +150
8
50
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, T
A
= 0°C to +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
µA
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 (CLK0,CK1)
Input Capacitance (CS0#)
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
21
25
12
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
3
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
White Electronic Designs
OPERATING CURRENT CHARACTERISTICS
(V
CC
= 3.3V, T
A
= 0°C to +70°C)
Conditions
Burst Length = 1
t
RC
³ t
RC
(min)
I
OL
= 0mA
CKE
≤
V
IL
(max), t
CC
= 10ns
CKE & CLK
≤
V
IL
(max), t
CC
=
∞
CKE
≥
V
IH
(min), CS
≥
V
IH
(min), tcc =10ns
Input signals are charged one time during 20
CKE
≥
V
IH
(min), CLK
≤V
IL
(max), t
CC
=
∞
Input signals are stable
CKE
≥
V
IL
(max), t
CC
= 10ns
CKE & CLK
≤
V
IL
(max), t
CC
=
∞
CKE
≥
V
IH
(min), CS
≥
V
IH
(min), tcc = 10ns
Input signals are changed one time during 20ns
CKE
≥
V
IH
(min), CLK
≤
V
IL
(max), tcc =
∞
Input signals are stable
Io = mA
Page burst
4 Banks activated
t
CCD
= 2CLK
t
RC
≥
t
RC
(min)
CKE
≤
0.2V
WED3DG647V-D1
Version
Parameter
Operating Current
(One bank active)
Precharge Standby Current
in Power Down Mode
Precharge Standby Current
in Non-Power Down Mode
Symbol
I
CC1
133
460
100
400
Units
mA
Note
1
I
CC2P
I
CC2PS
I
cc2N
I
cc2NS
5
5
60
mA
mA
25
15
15
120
100
mA
mA
mA
Active standby current in
power-down mode
Active standby current in
non power-down mode
I
CC3P
I
CC3PS
I
CC3N
I
CC3NS
Operating current (Burst mode)
I
CC4
460
540
5
380
500
mA
mA
mA
1
2
Refresh current
Self refresh current
I
CC5
I
CC6
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
/VssQ)
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June 2003
Rev. 1
4
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
White Electronic Designs
Part Number
WED3DG647V10D1
WED3DG647V7D1
WED3DG647V75D1
Speed
100MHz
133MHz
133MHz
CAS Latency
CL=2
CL=2
CL=3
WED3DG647V-D1
Note: For industrial temperature range product, add an "I" to the end of the part number.
PACKAGE DIMENSIONS
ALL DIMENSIONS ARE IN INCHES
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
June 2003
Rev. 1
5
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
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