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Электронный компонент: W3DG6435V7D2

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White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG6435V-D2
July 2004
Rev. 0
PRELIMINARY*
256MB - 32Mx64 SDRAM UNBUFFERED
DESCRIPTION
The W3DG6435V is a 32Mx64 synchronous DRAM module
which consists of eight 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 168 Pin DIMM multilayer FR4 Substrate.
* This product is under development, is not qualifi ed or characterized and is subject to
change without notice.
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
PIN NAMES
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
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
*V
REF
90
V
CC
118
A3
146
*V
REF
7
DQ4
35
A4
63
CKE1
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
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
WP***
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 should be NC in the system
which does not support SPD.
*** WP available on the WED3DG6335V-D2.
A0 A12
Address input (Multiplexed)
BA0-1
Select Bank
DQ0-63
Data Input/Output
CB0-7
Check bit (Data-in/Data-out)
CLK0-CLK3
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
WP
Write Protect
2
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG6435V-D2
July 2004
Rev. 0
PRELIMINARY
FUNCTIONAL BLOCK DIAGRAM
CS0#
DQM0
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQM1
DQM2
CS2#
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQM0
DQM1
DQM2
CS0#
CS0#
CS2#
U0
U1
U2
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQM3
CS2#
U3
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQM3
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
DQM4
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
DQM5
DQM6
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQM4
DQM5
DQM6
CS0#
CS0#
CS2#
U4
U5
U6
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQM7
CS2#
U7
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
DQM7
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
SCL
A0
A1
A2
SA0
SA2
SA1
SDA
A0 ~ A12, BA0 & 1
RAS#
CAS#
WE#
CKE0
SDRAM U0 ~ U7
SDRAM U0 ~ U7
SDRAM U0 ~ U7
SDRAM U0 ~ U7
SDRAM U0 ~ U7
Every DQpin of SDRAM
DQn
10
V
CC
V
SS
Two 0.1uF Capacitors
per each SDRAM
To all SDRAMS
WP
3
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG6435V-D2
July 2004
Rev. 0
PRELIMINARY
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
TSTG
-55 ~ +150
C
Power Dissipation
PD
8
W
Short Circuit Current
IOS
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
+70C
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
IOH= -2mA
Output Low Voltage
V
OL
--
--
0.4
V
IOL= -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
CC
Input leakage currents include Hi-Z output leakage for all bi-directional buffers with Tri-State outputs.
CAPACITANCE
T
A
= 25C, f = 1MHz, V
CC
= 3.3V, V
REF
=1.4V
200mV
Parameter
Symbol
Max
Unit
Input Capacitance (A0-A12)
C
IN1
45
pF
Input Capacitance (RAS#,CAS#,WE#)
C
IN2
45
pF
Input Capacitance (CKE0)
C
IN3
45
pF
Input Capacitance (CLK0)
C
IN4
10
pF
Input Capacitance (CS0#,CS2#)
C
IN5
25
pF
Input Capacitance (DQM0-DQM7)
C
IN6
8
pF
Input Capacitance (BA0-BA1)
C
IN7
45
pF
Data input/output capacitance (DQ0-DQ63)
C
OUT
9.5
pF
4
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG6435V-D2
July 2004
Rev. 0
PRELIMINARY
OPERATING CURRENT CHARACTERISTICS
V
CC
= 3.3V, 0C
T
A
70C
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
800
800
mA
1
Precharge Standby Current
in Power Down Mode
I
CC2P
CKE V
IL
(max), t
CC
= 10ns
16
mA
I
CC2PS
CKE & CK V
IL
(max), t
CC
=
16
mA
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
160
mA
I
CC2NS
CKE V
IH
(min), CK V
IL
(max), t
CC
=
Input signals are stable
80
mA
Active standby current in power-
down mode
I
CC3P
CKE V
IL
(max), t
CC
= 10ns 48
mA
I
CC3PS
CKE & CK V
IL
(max), t
CC
=
48
Active standby in current non
power-down mode
I
CC3N
CKE V
IH
(min), CS V
IH
(min), t
CC
= 10ns
Input signals are charged one time during 20ns
240
mA
I
CC3NS
CKE V
IH
(min), CK V
IL
(max), t
CC
=
input signals are stable
200
mA
Operating current (Burst mode)
I
CC4
Io = mA
Page burst
4 Banks activated
t
CCD
= 2CK
880
880
mA
1
Refresh current
I
CC5
t
RC
t
RC
(min)
1760
1760
mA
2
Self refresh current
I
CC6
CKE 0.2V
24
mA
Notes:
1.
Measured with outputs open.
2.
Refresh period is 64ms.
5
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W3DG6435V-D2
July 2004
Rev. 0
PRELIMINARY
ALL DIMENSIONS ARE IN MILLIMETERS AND (INCHES)
3.99
(0.157)
(2X)
8.89
(0.350)
6.35
(0.250)
P1
11.43
(0.450)
3.18
(0.125) (2X)
133.48
(5.255 MAX.)
115.57
(4.550)
6.35
(0.250)
54.61
(2.150)
1.27 0.10
(0.050 0.004)
3.99
(0.157 MIN.)
2.54
(0.100)
MAX.
30.48
(1.200)
MAX.
17.78
(0.700)
42.16
(1.660)
36.83
(1.450)
PACKAGE DIMENSIONS
ORDERING INFORMATION
Part Number
Speed
CAS Latency
Height*
W3DG6335V10D2
100MHz
CL=2
30.48 (1.20")
W3DG6335V7D2
133MHz
CL=2
30.48 (1.20")
W3DG6335V75D2
133MHz
CL=3
30.48 (1.20")
Note: Available with "WP" Write Protect on pin 81.
Part Number
Speed
CAS Latency
Height*
W3DG6435V10D2
100MHz
CL=2
30.48 (1.20")
W3DG6435V7D2
133MHz
CL=2
30.48 (1.20")
W3DG6435V75D2
133MHz
CL=3
30.48 (1.20")
Note: Modules are available in industrial temperature - 40C to 85C.