PDF W3DG647V-D2 Data sheet ( Hoja de datos )

Número de pieza	W3DG647V-D2
Descripción	SDRAM UNBUFFERED
Fabricantes	White Electronic Designs
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No Preview Available ! White Electronic Designs W3DG647V-D2 64MB- 8Mx64 SDRAM UNBUFFERED 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 DESCRIPTION The W3DG647V is a 8Mx64 synchronous DRAM module which consists of eight 8Mx8 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 datasheet describes a product that may or may not be under development and is subject to change or cancellation without notice. www.DataSheet4U.com Pin Conﬁgurations (Front Side/Back Side) Pin Front 1 VSS 2 DQ0 3 DQ1 4 DQ2 5 DQ3 6 VCC 7 DQ4 8 DQ5 9 DQ6 10 DQ7 11 DQ8 12 VSS 13 DQ9 14 DQ10 15 DQ11 16 DQ12 17 DQ13 18 VCC 19 DQ14 20 DQ15 21 CB0 22 CB1 23 VSS 24 NC 25 NC 26 VCC 27 WE# 28 DQM0 Pin Front 29 DQM1 30 CS0# 31 DNU 32 VSS 33 A0 34 A2 35 A4 36 A6 37 A8 38 A10/AP 39 BA1 40 VCC 41 VCC 42 CK0 43 VSS 44 DNU 45 CS2# 46 DQM2 47 DQM3 48 DNU 49 VCC 50 NC 51 NC 52 CB2 53 CB3 54 VSS 55 DQ16 56 DQ17 Pin Front 57 DQ18 58 DQ19 59 VCC 60 DQ20 61 NC 62 VREF 63 CKE1 64 VSS 65 DQ21 66 DQ22 67 DQ23 68 VSS 69 DQ24 70 DQ25 71 DQ26 72 DQ27 73 VCC 74 DQ28 75 DQ29 76 DQ30 77 DQ31 78 VSS 79 CK2 80 NC 81 WP 82 SDA 83 *SCL 84 VCC Pin Back 85 VSS 86 DQ32 87 DQ33 88 DQ34 89 DQ35 90 VCC 91 DQ36 92 DQ37 93 DQ38 94 DQ39 95 DQ40 96 VSS 97 DQ41 98 DQ42 99 DQ43 100 DQ44 101 DQ45 102 VCC 103 DQ46 104 DQ47 105 CB4 106 CB5 107 VSS 108 NC 109 NC 110 VCC 111 CAS# 112 DQM4 Pin Back 113 DQM5 114 CS1# 115 RAS# 116 VSS 117 A1 118 A3 119 A5 120 A7 121 A9 122 BA0 123 A11 124 VCC 125 CK1 126 A12 127 VSS 128 CKE0 129 CS3# 130 DQM6 131 DQM7 132 A13 133 VCC 134 NC 135 NC 136 CB6 137 CB7 138 VSS 139 DQ48 140 DQ49 Pin Back 141 DQ50 142 DQ51 143 VCC 144 DQ52 145 NC 146 VREF 147 DNU 148 VSS 149 DQ53 150 DQ54 151 DQ55 152 VSS 153 DQ56 154 DQ57 155 DQ58 156 DQ59 157 VCC 158 DQ60 159 DQ61 160 DQ62 161 DQ63 162 VSS 163 CLK3 164 NC 165 SA0 166 SA1 167 SA2 168 VCC PIN NAMES A0 – A11 Address input (Multiplexed) BA0-1 Select Bank DQ0-63 Data Input/Output CK0,CK2 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 VCC Power Supply (3.3V) VSS Ground SDA Serial data I/O SCL Serial clock DNU Do not use NC No Connect WP Write Protect These pins are not used in this module. These pins should be NC in the system which does not support SPD. * WP Available on the WED3DG637V-D2 only. White Electronic Designs Corp. reserves the right to change products or speciﬁcations without notice. 1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com 1 page White Electronic Designs W3DG647V-D2 ORDERING INFORMATION Part Number Speed CAS Latency W3DG647V10D2 100MHz CL=2 W3DG647V7D2 133MHz CL=2 W3DG647V75D2 133MHz CL=3 Note: Modules are available in industrial temperature - 40°C to 85°C. Part Number Speed WED3DG637V10D2 100MHz WED3DG637V7D2 133MHz WED3DG637V75D2 133MHz Note: Available with "WP" Write Protect on pin 81. CAS Latency CL=2 CL=2 CL=3 PACKAGE DIMENSIONS www.DataSheet4U.com ALL DIMENSIONS ARE IN INCHES White Electronic Designs Corp. reserves the right to change products or speciﬁcations without notice. 5 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com 5 Page

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