W3DG7232V-D2 Datasheet, PDF (1/9 Pages) White Electronic Designs Corporation – 256MB - 32Mx72 SDRAM, REGISTER and SPD, w/PLL

White Electronic Designs
W3DG7232V-D2
PRELIMINARY*
256MB – 32Mx72 SDRAM, REGISTER and SPD, w/PLL
FEATURES
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
NOTE: Consult factory for availability of:
• Lead-Free Products
• Vendor source control options
• Industrial temperature options
DESCRIPTION
The W3DG7232V is a 32Mx72 synchronous DRAM module
which consists of nine 32Meg x 8 SDRAM components
in TSOP II package, two 18 bit Drive ICs for input control
signal and one 2Kb 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 qualified or characterized and is subject to
change without notice.
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
PIN FRONT PIN BACK PIN FRONT PIN BACK PIN BACK PIN
1
VSS 29 DQMB1 57 DQ18 85 VSS 113 DQMB5 141
2 DQ0 30 CS0# 58 DQ19 86 DQ32 114 *CS1# 142
3 DQ1 31 DNU 59 VCC 87 DQ33 115 RAS# 143
4
DQ2 32
VSS
60 DQ20 88 DQ34 116
VSS
144
5
DQ3 33
A0
61
NC 89 DQ35 117
A1
145
6
VCC
34
A2
62 *VREF 90 VCC 118
A3
146
7
DQ4 35
A4
63 *CKE1 91 DQ36 119
A5
147
8
DQ5 36
A6
64
VSS
92 DQ37 120
A7
148
9
DQ6 37
A8
65 DQ21 93 DQ38 121
A9
149
10 DQ7 38 A10/AP 66 DQ22 94 DQ39 122 BA0 150
11 DQ8 39 BA1 67 DQ23 95 DQ40 123 A11 151
12
VSS
40
VCC
68
VSS
96
VSS 124
VCC
152
13 DQ9 41 VCC 69 DQ24 97 DQ41 125 *CK1 153
14 DQ10 42 CK0 70 DQ25 98 DQ42 126 A12 154
15 DQ11 43
VSS
71 DQ26 99 DQ43 127
VSS
155
16 DQ12 44 DNU 72 DQ27 100 DQ44 128 CKE0 156
17 DQ13 45 CS2# 73 VCC 101 DQ45 129 *CS3# 157
18 VCC 46 DQMB2 74 DQ28 102 VCC 130 DQMB6 158
19 DQ14 47 DQMB3 75 DQ29 103 DQ46 131 DQMB7 159
20 DQ15 48 DNU 76 DQ30 104 DQ47 132 *A13 160
21
CB0 49
VCC
77 DQ31 105 CB4 133
VCC
161
22 CB1 50
NC
78
VSS 106 CB5 134
NC
162
23
VSS
51
NC
79 *CK2 107 VSS 135
NC
163
24 NC 52 CB2 80 NC 108 NC 136 CB6 164
25 NC 53 CB3 81 NC 109 NC 137 CB7 165
26
VCC
54
VSS
82 **SDA 110 VCC 138
VSS
166
27 WE# 55 DQ16 83 **SCL 111 CAS# 139 DQ48 167
28 DQMB0 56 DQ17 84 VCC 112 DQMB4 140 DQ49 168
BACK
DQ50
DQ51
VCC
DQ52
NC
*VREF
REGE
VSS
DQ53
DQ54
DQ55
VSS
DQ56
DQ57
DQ58
DQ59
VCC
DQ60
DQ61
DQ62
DQ63
VSS
*CK3
NC
**SA0
**SA1
**SA2
VCC
PIN NAMES
A0 – A12
BA0-1
DQ0-63
CB0-7
CK0
CKE0
CS0#, CS2#
RAS#
CAS#
WE#
DQMB0-7
VCC
VSS
*VREF
REGE
SDA
SCL
SA0-2
DNU
NC
Address Input (Multiplexed)
Select Bank
Data Input/Output
Check Bit (Data-In/Data-Out)
Clock Input
Clock Enable Input
Chip Select Input
Row Address Strobe
Column Address Strobe
Write Enable
DQMB
Power Supply (3.3V)
Ground
Power Supply for Reference
Register Enable
Serial Data I/O
Serial Clock
Address in EEPROM
Do Not Use
No Connect
* These pins are not used in this module.
** These pins should be NC in the system which does
not support SPD.
February 2005
Rev. 1
1
White Electronic Designs Corporation • [phone] • www.wedc.com