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WED3DG72126V7D2 Datasheet(PDF) 1 Page - White Electronic Designs Corporation |
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WED3DG72126V7D2 Datasheet(HTML) 1 Page - White Electronic Designs Corporation |
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1 / 5 page  2 White Electronic Designs Corporation (508) 366-5151 www.whiteedc.com WED3DG72126V-D2 March 2002 Rev. A ECO #XXXXX 1GB-128Mx72,SDRAM UNBUFFERED n Burst Mode Operation n Auto and Self Refresh capability n LVTTL compatible inputs and outputs n Serial Presence Detect with EEPROM n Fully synchronous: All signals are registered on the positive edge of the system clock n Programmable Burst Lengths: 1, 2, 4, 8 or Full Page n 3.3 volt 6 0.3v Power Supply n 168- Pin DIMM JEDEC The WED3DG72126V is organized as a 128Mx72 synchronous DRAM module which consists of eighteen 64Mx8 stack SDRAM components in TSOP- 11 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. DESCRIPTION FEATURES PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE) PIN NAMES Pin Front Pin Front Pin Front Pin Back Pin Back Pin Back 1 VSS 29 DQM1 57 DQ18 85 VSS 113 DQM5 141 DQ50 2 DQ0 30 CS0 58 DQ19 86 DQ32 114 CS1 142 DQ51 3 DQ1 31 DNU 59 VDD 87 DQ33 115 RAS 143 VDD 4 DQ2 32 VSS 60 DQ20 88 DQ34 116 VSS 144 DQ52 5 DQ3 33 A0 61 NC 89 DQ35 117 A1 145 NC 6 VDD 34 A2 62 *VREF 90 VDD 118 A3 146 *VREF 7 DQ4 35 A4 63 CKE1 91 DQ36 119 A5 147 NC 8 DQ5 36 A6 64 VSS 92 DQ37 120 A7 148 VSS 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 VSS 40 VDD 68 VSS 96 VSS 124 VDD 152 VSS 13 DQ9 41 VDD 69 DQ24 97 DQ41 125 CLK1 153 DQ56 14 DQ10 42 CLK0 70 DQ25 98 DQ42 126 A12 154 DQ57 15 DQ11 43 VSS 71 DQ26 99 DQ43 127 VSS 155 DQ58 16 DQ12 44 DNU 72 DQ27 100 DQ44 128 CKE0 156 DQ59 17 DQ13 45 CS2 73 VDD 101 DQ45 129 CS3 157 VDD 18 VDD 46 DQM2 74 DQ28 102 VDD 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 VDD 77 DQ31 105 CB4 133 VDD 161 DQ63 22 CB1 50 NC 78 VSS 106 CB5 134 NC 162 VSS 23 VSS 51 NC 79 CLK2 107 VSS 135 NC 163 CLK3 24 NC 52 CB2 80 NC 108 NC 136 CB6 164 NC 25 NC 53 CB3 81 NC 109 NC 137 CB7 165 **SA0 26 VDD 54 VSS 82 **SDA 110 VDD 138 VSS 166 **SA1 27 WE 55 DQ16 83 **SCL 111 CAS 139 DQ48 167 **SA2 28 DQM0 56 DQ17 84 VDD 112 DQM4 140 DQ49 168 VDD * These pins are not used in this module. ** These pins should be NC in the system which does not support SPD. *ADVANCED * This datasheet describes a product that may or may not be under development and is subject to change or cancellation without notice. A0 A12Address input (Multiplexed) BA0-1 Select Bank DQ0-63 Data Input/Output CB0-7 Check bit (Data-in/data-out) CLK0-CLK3 Clock input CKE0,CKE1 Clock Enable input CS0-CS3 Chip select Input RAS RowAddress Strobe CAS ColumnAddress Strobe WE Write Enable DQM0-7 DQM VDD Power Supply (3.3V) VSS Ground *VREF Power supply for reference SDA Serial data I/O SCL Serial clock SA0-2Address in EEPROM DNU Do not use NC No Connect |
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Similar Description - WED3DG72126V7D2 |
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