WED3EG72512SXX-JD3 -AJD3 White Electronic Designs ADVANCED* 4GB-2x256Mx72 DDR SDRAM REGISTERED ECC DESCRIPTION FEATURES n Double data rate architecture n DDR200 and DDR266 The WED3EG72512SXX-JD3 is a 2x256Mx72 Double Data Rate SDRAM memory module based on 1 GB DDR SDRAM components. The module consists of thirtysix 1GB stacked DDR SDRAMs in 66 pin TSOP packages mounted on a 184 pin FR4 substrate. • JEDEC design specifications n Bi-directional data strobes (DQS) n Differential clock inputs (CK & CK#) n Programmable Read Latency 2, 2.5 (clock) n Programmable Burst Length (2, 4, 8) n Programmable Burst type (sequential & interleave) n Edge aligned data output, center aligned data input n Auto and self refresh n Serial presence detect n JEDEC standard 184 pin DIMM package n Power supply: VDD: 2.5V ± 0.2V n Package Option JD3 30.46 (1.20") and AJD3 28.68 (1.13") Synchronous design allows precise cycle control with the use of system clock. Data I/O transactions are possible on both edges and Burst Lengths allow the same device to be useful for a variety of high bandwidth, high performance memory system applications. This product is under development, is not qualified or characterized and is subject to change or cancellation without notice. OPERATING FREQUENCIES Speed @ CS=2 Speed @ CS=2.5 CL-tRCD-tRP 262JD3 265JD3 202JD3 DDR266 @CL=2 DDR266 @CL=2.5 DDR200 @CL=2 133MHz 133MHz 100MHz 133MHz 133MHz ––––– 2-3-3 2.5-3-3 2-2-2 White Electronic Designs Corp. reserves the right to change products or specifications without notice. February, 2004 Rev. 0 1 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com WED3EG72512SXX-JD3 -AJD3 White Electronic Designs PIN CONFIGURATION PIN # SYMBOL PIN# SYMBOL PIN# 1 VREF 47 DQS8 93 2 DQ0 48 A0 94 3 VSS 48 A0 95 4 DQ1 50 VSS 96 5 DQS0 51 CB3 97 6 DQ2 52 BA1 98 7 VDD 53 DQ32 99 8 DQ3 54 VDDQ 100 9 NC 55 DQ33 101 10 RESET# 56 DQS4 102 11 VSS 57 DQ34 103 12 DQ8 58 VSS 104 13 DQ9 59 BA0 105 14 DQS1 60 DQ35 106 15 VDDQ 61 DQ40 107 16 NC 62 VDDQ 108 17 NC 63 WE# 109 18 VSS 64 DQ41 110 19 DQ10 65 CAS# 111 20 DQ11 66 VSS 112 21 CKE0 67 DQS5 113 22 VDDQ 68 DQ42 114 23 DQ16 69 DQ43 115 24 DQ17 70 VDD 116 25 DQS2 71 NC 117 26 VSS 72 DQ48 118 27 A9 73 DQ49 119 28 DQ18 74 VSS 120 29 A7 75 NC 121 30 VDDQ 76 NC 122 31 DQ19 77 VDDQ 123 32 A5 78 DQS6 124 33 DQ24 79 DQ50 125 34 VSS 80 DQ51 126 35 DQ25 81 VSS 127 36 DQS3 82 VDDID 128 37 A4 83 DQ56 129 38 VDD 84 DQ57 130 39 DQ26 85 VDD 131 40 DQ27 86 DQS7 132 41 A2 87 DQ58 133 42 VSS 88 DQ59 134 43 A1 89 VSS 135 44 CB0 90 NC 136 45 CB1 91 SDA 137 46 VDD 92 SCL 138 SYMBOL VSS DQ4 DQ5 VDDQ DQS9 DQ6 DQ7 VSS NC NC NC VDDQ DQ12 DQ13 DQS10 VDD DQ14 DQ15 NC VDDQ NC DQ20 A12 VSS DQ21 A11 DQS11 VDD DQ22 A8 DQ23 VSS A6 DQ28 DQ29 VDDQ DQS12 A3 DQ30 VSS DQ31 CB4 CB5 VDDQ CK0 CK0# PIN NAMES PIN# 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 SYMBOL VSS DQS17 A10 CB6 VDDQ CB7 VSS DQ36 DQ37 VDD DQS13 DQ38 DQ39 VSS DQ44 RAS# DQ45 VDDQ CS0# NC DQS14 VSS DQ46 DQ47 NC VDDQ DQ52 DQ53 A13 VDD DQS15 DQ54 DQ55 VDDQ NC DQ60 DQ61 VSS DQS16 DQ62 DQ63 VDDQ SA0 SA1 SA2 VDDSPD A0 ~ A13 BA0 ~ BA1 DQ0 ~ DQ63 CB0 ~ CB7 DQS0 ~ DQS17 CK0 CK0# CKE0, CKE1 CS0#, CS1# RAS# CAS# WE# VDD VDDQ VSS VREF VDDSPD SDA SCL SA0 ~ 2 VDDID NC Reset Address Input (Multiplexed) Bank Select Address Data Input/Output Check Bits Data Strobe Input/Output Clock Input Clock Input Clock Enable Input Chip Select Input Row Address Strobe Column Address Strobe Write Enable Power Supply (2.5V) Power Supply for DQS (2.5V) Ground Power Supply for Reference Serial EEPROM Power/Supply (2.3V to 3.6V) Serial Data I/O Serial Clock Address in EEPROM VDD Identification Flag No Connection RESET ENABLE White Electronic Designs Corp. reserves the right to change products or specifications without notice. February, 2004 Rev. 0 2 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com WED3EG72512SXX-JD3 -AJD3 White Electronic Designs ORDERING INFORMATION FOR AJD3 Part Number Density Speed CAS Latency Organization Height* WED3EG72512S262AJD3 4GB WED3EG72512S265AJD3 4GB 133MHz/266Mbps 2 2 x 256M x 72 28.68 (1.13") 133MHz/266Mbps 2.5 2 x 256M x 72 28.68 (1.13") WED3EG72512S202AJD3 4GB 100MHz/200Mbps 2 2 x 256M x 72 28.68 (1.13") PACKAGE DIMENSIONS FOR AJD3 ������ ������������� ������ �������� ������ �������� ���� ����������� ���� ���������� ����� ���������� ����� ������ ���� ������ ���� ������ ����� ������� ���� ������ ����� ������� ���� ����������� ���� ������ ���� ������ ���� ���� ���������� ���� ������ ���� ���� ����� ������ �������� All Dimensions are in millimeters and (inches) MAX MIN or typical where noted White Electronic Designs Corp. reserves the right to change products or specifications without notice. February, 2004 Rev. 0 54 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com