1
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG72127V-D2
January, 2004
Rev. 2
1
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
1GB - 128Mx72 SDRAM REGISTERED and SPD, w/PLL
FEATURES
Clock speeds of 100MHz and 133MHz
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
DESCRIPTION
The W3DG72127V is a 128Mx72 synchronous DRAM
module which consists of eighteen 128Mx4 SDRAM
components in TSOP II package, two 18 bit drive ICs
for input control signal 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.
* This product is subject to change without notice.
Pin Confi gurATIONs (FRONT SIDE/BACK SIDE)
PIN NAMES
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
*VREF
90
V
CC
118
A3
146
*V
REF
7
DQ4
35
A4
63
*CKE1
91
DQ36
119
A5
147
REGE
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
*CLK1
153
DQ56
14
DQ10
42
CLK0
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
*CS3#
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
*A13
160
DQ62
21
CB0
49
V
CC
77
DQ31
105
CB4
133
V
CC
161
DQ63
22
CB1
50
NC
78
V
SS
106
CB5
134
NC
162
V
SS
23
V
SS
51
NC
79
CLK2
107
V
SS
135
NC
163
*CLK3
24
NC
52
CB2
80
NC
108
NC
136
CB6
164
NC
25
NC
53
CB3
81
NC
109
NC
137
CB7
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
* These pins are not used in this module.
** 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
CB0-7
Check bit (Data-in/data-out)
CLK0
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
*V
REF
Power supply for reference
REGE
Register Enable
SDA
Serial data I/O
SCL
Serial clock
SA0-2
Address in EEPROM
DNU
Do not use
NC
No Connect
2
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG72127V-D2
January, 2004
Rev. 2
2
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
FUNCTIONAL BLOCK DIAGRAM
CS0#
DQ0
DQ1
DQ2
DQ3
DQM CS#
D0
I/O 0
I/O 1
I/O 2
I/O 3
DQ4
DQ5
DQ6
DQ7
DQM CS#
D1
I/O 0
I/O 1
I/O 2
I/O 3
DQ8
DQ9
DQ10
DQ11
DQM CS#
D2
I/O 0
I/O 1
I/O 2
I/O 3
DQ12
DQ13
DQ14
DQ15
DQM CS#
D3
I/O 0
I/O 1
I/O 2
I/O 3
CB0
CB1
CB2
CB3
DQM CS#
D4
I/O 0
I/O 1
I/O 2
I/O 3
DQ16
DQ17
DQ18
DQ19
DQM CS#
D5
I/O 0
I/O 1
I/O 2
I/O 3
DQ20
DQ21
DQ22
DQ23
DQM CS#
D6
I/O 0
I/O 1
I/O 2
I/O 3
DQ24
DQ25
DQ26
DQ27
DQM CS#
D7
I/O 0
I/O 1
I/O 2
I/O 3
DQ28
DQ29
DQ30
DQ31
DQM CS#
D8
I/O 0
I/O 1
I/O 2
I/O 3
DQ32
DQ33
DQ34
DQ35
DQM CS#
D9
I/O 0
I/O 1
I/O 2
I/O 3
DQ36
DQ37
DQ38
DQ39
DQM CS#
D10
I/O 0
I/O 1
I/O 2
I/O 3
DQ40
DQ41
DQ42
DQ43
DQM CS#
D11
I/O 0
I/O 1
I/O 2
I/O 3
DQ44
DQ45
DQ46
DQ47
DQM CS#
D12
I/O 0
I/O 1
I/O 2
I/O 3
CB4
CB5
CB6
CB7
DQM CS#
D13
I/O 0
I/O 1
I/O 2
I/O 3
DQ48
DQ49
DQ50
DQ51
DQM CS#
DQMB6
D14
I/O 0
I/O 1
I/O 2
I/O 3
DQ52
DQ53
DQ54
DQ55
DQM CS#
D15
I/O 0
I/O 1
I/O 2
I/O 3
DQ56
DQ57
DQ58
DQ59
DQM CS#
D16
I/O 0
I/O 1
I/O 2
I/O 3
DQ60
DQ61
DQ62
DQ63
DQM CS#
D17
I/O 0
I/O 1
I/O 2
I/O 3
DQMB2
DQMB5
DQMB1
DQMB4
DQMB0
DQMB7
DQMB3
CS2#
NOTE: DQ wiring may differ than described in this
drawing, however DQ/DQMB/CKE/S relationships
must be maintained as shown.
# NOTE: ALL RESISTOR VALUES ARE 10 OHMS.
CS#0-2
DQMB0-7
BA0-1
A0-12
RAS#
CAS#
CKE0
WE#
REGE
PCK
RS0-2
RDQMB0-7
RBA0-RBAN BA0-BAN: SDRAMS D0-35
RRAS RAS: SDRAMS D0-35
RCAS CAS: SDRAMS D0-35
RCKE0 CKE: SDRAMS D0-17
RWE WE: SDRAMS D0-35
R
E
G
I
S
T
E
R
CK1-3
12pF
PLL
12pF
SDRAM
REGISTER
CK0
SERIAL PD
SCL
SDA
A0
A1
A2
SA1
SA0
SA2
V
CC
V
SS
D0-35
D0-35
3
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG72127V-D2
January, 2004
Rev. 2
3
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
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
36
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
Voltage Referenced to: V
SS
= 0V, 0C
T
A
70
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
= 25 C, f = 1MHz, V
CC
= 3.3V, V
REF
= 1.4V 200mV
Parameter
Symbol
Max
Unit
Input Capacitance (A0-A12)
C
IN1
9
pF
Input Capacitance (RAS#,CAS#,WE#)
C
IN2
9
pF
Input Capacitance (CKE0)
C
IN3
9
pF
Input Capacitance (CLK0)
C
IN4
17
pF
Input Capacitance (CS0#,CS2#)
C
IN5
9
pF
Input Capacitance (DQM0-DQM7)
C
IN6
7
pF
Input Capacitance (BA0-BA1)
C
IN7
9
pF
Data input/output capacitance (DQ0-DQ63)
C
OUT
10
pF
Data input/output capacitance (CB0-CB7)
C
OUT1
10
pF
4
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG72127V-D2
January, 2004
Rev. 2
4
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
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
CC
/V
SSQ
)
Parameters
Symbol
Conditions
Versions
Units
Note
133/100
Operating Current
(One bank active)
I
CC1
Burst Length = 1
t
RC
t
RC
(min)
I
OL
= 0mA
3885
mA
1
Precharge Standby Current
in Power Down Mode
I
CC2P
C
KE
V
IL
(max), t
CC
= 10ns
395
mA
I
CC2PS
C
KE
& CLK V
IL
(max), t
CC
=
330
mA
Precharge Standby Current
in Non-Power Down Mode
I
CC2N
C
KE
V
IH
(min), CS V
IH
(min), t
CC
=10ns
Input signals are charged one time during 20
825
mA
I
CC2NS
C
KE
V
IH
(min), CLK V
IL
(max), t
CC
=
Input signals are stable
275
mA
Active standby current in
power-down mode
I
CC3P
C
KE
V
IL
(max), t
CC
= 10ns
465
mA
I
CC3PS
C
KE
& CLK V
IL
(max), t
CC
=
372
Active standby in current non power-
down mode
I
CC3N
C
KE
V
IH
(min), CS V
IH
(min), t
CC
= 10ns
Input signals are charged one time during 20ns
1185
mA
I
CC3NS
C
KE
V
IH
(min), CLK V
IL
(max), t
CC
=
input signals are stable
830
mA
Operating current (Burst mode)
I
CC4
Io = mA
Page burst
4 Banks activated
t
CCD
= 2CLK
3885
mA
1
Refresh current
I
CC5
t
RC
t
RC
(min)
6225
mA
2
Self refresh current
I
CC6
C
KE
0.2V
411
mA
5
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG72127V-D2
January, 2004
Rev. 2
5
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
* ALL DIMENSIONS ARE IN MILLIMETERS AND (INCHES)
PACKAGE DIMENSIONS
ORDERING INFORMATION
Part Number
Speed
CAS Latency
Height*
W3DG72127V10D2
100MHz
CL=2
37.34 (1.47")
W3DG72127V7D2
133MHz
CL=2
37.34 (1.47")
W3DG72127V75D2
133MHz
CL=3
37.34 (1.47")
17.78
(0.700)
37.34
(1.47")
MAX
24.49
(0.964)
1.98
(0.078)
(2X)
6.35
(0.250)
36.83
(1.450)
42.19
(1.661)
3.18
(0.125)
54.61
(2.150)
1.27
(0.050) TYP.
1.27 0.10
(0.050 0039)
8.88
(0.350)
11.43
(0.450)
3.99
(0.157)
(2X)
3.81
(0.150)
3.99
(0.157)
133.48
(5.255) MAX.
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