W3DG72128V-D1 Datasheet, PDF (1/6 Pages) White Electronic Designs Corporation – 1GB - 128Mx72 SDRAM, UNBUFFERED w/PLL

White Electronic Designs
W3DG72128V-D1
PRELIMINARY*
1GB - 128Mx72 SDRAM, UNBUFFERED w/PLL
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
144 Pin SO-DIMM JEDEC
DESCRIPTION
The W3DG72128V is a 128Mx72 synchronous DRAM
module which consists of nine 128Mx8 stacks of 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 module is structured as 2 Ranks of
64Mx72 SDRAM.
* 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
PINOUT
BACK PIN FRONT PIN BACK PIN FRONT PIN BACK
1
VSS
2
VSS
49 DQ13 50 DQ45 97 DQ22 98 DQ54
3
DQ
4
DQ32 51 DQ14 52 DQ46 99 DQ23 100 DQ55
5
DQ1
6
DQ33 53 DQ15 54 DQ47 101 VCC 102 VCC
7
DQ2
8
DQ34 55
VSS
56 VSS 103 A6 104 A7
9
DQ3
10 DQ35 57 CB0 58 CB4 105 A8 106 BA0
11
VCC
12
VCC
59
CB1
60 CB5 107 VSS 108 VSS
13
DQ4
14 DQ36 61 CLK0 62 CKE0 109 A9 110 BA1
15
DQ5
16
DQ37 63
VCC
64 VCC 111 A10 112 A11
17
DQ6
18 DQ38 65 RAS# 66 CAS# 113 VCC 114 VCC
19
DQ7
20 DQ39 67 WE# 68 CKE1 115 DQMB2 116 DQMB6
21
VSS
22
VSS
69
S0#
70 A12 117 DQMB3 118 DQMB7
23 DQMB0 24 DQMB4 71
S1#
72 NC 119 VSS 120 VSS
25 DQMB1 26 DQMB5 73
NC
74 NC 121 DQ24 122 DQ56
27
VCC
28
VCC
75
VSS
76 VSS 123 DQ25 124 DQ57
29
A0
30
A3
77 CB2 78 CB6 125 DQ26 126 DQ58
31
A1
32
A4
79 CB3 80 CB7 127 DQ27 128 DQ59
33
A2
34
A5
81
VCC
82 VCC 129 VCC 130 VCC
35
VSS
36
VSS
83 DQ16 84 DQ48 131 DQ28 132 DQ60
37
DQ8
38 DQ40 85 DQ17 86 DQ49 133 DQ29 134 DQ61
39
DQ9
40 DQ41 87 DQ18 88 DQ50 135 DQ30 136 DQ62
41
DQ10
42 DQ42 89 DQ19 90 DQ51 137 DQ31 138 DQ63
43
DQ11
44 DQ43 91
VSS
92 VSS 139 VSS 140 VSS
45
VCC
46
VCC
93 DQ20 94 DQ52 141 SDA 142 SCL
47
DQ12
48 DQ44 95 DQ21 96 DQ53 143 VCC 144 VCC
PIN NAMES
A0 – A12
Address Input (Multiplexed)
BA0-1
Select Bank
DQ0-63
Data Input/Output
CLK0
Clock Input
CB0-7
Check Bit (Data-In/Data-Out)
CKE0, CKE1 Clock Enable Input
CS0#, CS1# ChipSelect Input
RAS#
Row Address Strobe
CAS#
Column Address Strobe
WE#
Write Enable
DQM0-7
DQM
VCC
Power Supply (3.3V)
VSS
Ground
SDA
Serial Data I/O
SCL
Serial Clock
DNU
Do Not Use
NC
No Connect
* These pins are not used in this module.
** 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 2004
Rev. 0
1
White Electronic Designs Corporation • [phone] • www.wedc.com