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EBE21RD4AEFA-6 Dataheets PDF



Part Number EBE21RD4AEFA-6
Manufacturers Elpida Memory
Logo Elpida Memory
Description 2GB Registered DDR2 SDRAM DIMM
Datasheet EBE21RD4AEFA-6 DatasheetEBE21RD4AEFA-6 Datasheet (PDF)

DATA SHEET www.DataSheet4U.com 2GB Registered DDR2 SDRAM DIMM EBE21RD4AEFA-6 (256M words × 72 bits, 2 Ranks) Description The EBE21RD4AEFA is a 256M words × 72 bits, 2 ranks DDR2 SDRAM Module, mounting 36 pieces of 512M bits DDR2 SDRAM sealed in FBGA package. Read and write operations are performed at the cross points of the CK and the /CK. This high-speed data transfer is realized by the 4bits prefetch-pipelined architecture. Data strobe (DQS and /DQS) both for read and write are available for.

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DATA SHEET www.DataSheet4U.com 2GB Registered DDR2 SDRAM DIMM EBE21RD4AEFA-6 (256M words × 72 bits, 2 Ranks) Description The EBE21RD4AEFA is a 256M words × 72 bits, 2 ranks DDR2 SDRAM Module, mounting 36 pieces of 512M bits DDR2 SDRAM sealed in FBGA package. Read and write operations are performed at the cross points of the CK and the /CK. This high-speed data transfer is realized by the 4bits prefetch-pipelined architecture. Data strobe (DQS and /DQS) both for read and write are available for high speed and reliable data bus design. By setting extended mode register, the on-chip Delay Locked Loop (DLL) can be set enable or disable. This module provides high density mounting without utilizing surface mount technology. Decoupling capacitors are mounted beside each FBGA on the module board. Note: Do not push the cover or drop the modules in order to avoid mechanical defects, which may result in electrical defects. Features • 240-pin socket type dual in line memory module (DIMM)  PCB height: 30.0mm  Lead pitch: 1.0mm  Lead-free (RoHS compliant) • Power supply: VDD = 1.8V ± 0.1V • Data rate: 667Mbps (max.) • SSTL_18 compatible I/O • Double-data-rate architecture: two data transfers per clock cycle • Bi-directional, data strobe (DQS and /DQS) is transmitted /received with data, to be used in capturing data at the receiver • DQS is edge aligned with data for READs; center aligned with data for WRITEs • Differential clock inputs (CK and /CK) • DLL aligns DQ and DQS transitions with CK transitions • Commands entered on each positive CK edge; data referenced to both edges of DQS • Four internal banks for concurrent operation (components) • Burst length: 4, 8 • /CAS latency (CL): 3, 4, 5 • Auto precharge option for each burst access • Auto refresh and self refresh modes • Average refresh period  7.8µs at 0°C ≤ TC ≤ +85°C  3.9µs at +85°C < TC ≤ +95°C • Posted CAS by programmable additive latency for better command and data bus efficiency • Off-Chip-Driver Impedance Adjustment and On-DieTermination for better signal quality • /DQS can be disabled for single-ended Data Strobe operation • 1 piece of PLL clock driver, 4 piece of register driver and 1 piece of serial EEPROM (2k bits EEPROM) for Presence Detect (PD) EO Document No. E0739E11 (Ver. 1.1) Date Published February 2006 (K) Japan Printed in Japan URL: http://www.elpida.com L This Product became EOL in November, 2006. Elpida Memory, Inc. 2005-2006 Pr od uc t EBE21RD4AEFA-6 Ordering Information Data rate Mbps (max.) 667 Component 1 JEDEC speed bin* (CL-tRCD-tRP) DDR2-667 (5-5-5) Contact pad Gold www.DataSheet4U.com Part number EBE21RD4AEFA-6E-E Package 240-pin DIMM (lead-free) Mounted devices EDE5104AESK-6E-E Notes: 1. Module /CAS latency = component CL + 1. Pin Configurations Front side 1 pin 64 pin 65 pin 120 pin EO Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Pin name VREF VSS DQ0 DQ1 VSS /DQS0 DQS0 VSS DQ2 DQ3 VSS DQ8 DQ9 VSS /DQS1 DQS1 VSS /RESET NC VSS DQ10 DQ11 VSS DQ16 DQ17 VSS /DQS2 DQS2 VSS Data Sheet E0739E11 (Ver. 1.1) 121 pin Back side 184 pin 185 pin 240 pin Pin No. 61 62 63 64 Pin name A4 VDD A2 VDD VSS VSS VDD NC/Par_In VDD A10 Pin No. 121 122 123 124 125 126 127 128 129 Pin name VSS DQ4 DQ5 VSS DQS9 /DQS9 VSS DQ6 DQ7 VSS DQ12 DQ13 VSS DQS10 Pin No. 181 182 183 184 185 186 187 188 189 190 191 192 193 194 Pin name VDD A3 A1 VDD CK0 /CK0 VDD A0 VDD BA1 VDD /RAS /CS0 VDD ODT0 A13 VDD VSS DQ36 DQ37 VSS L 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 Pr 130 BA0 131 VDD /WE 132 133 /CAS VDD /CS1 ODT1 VDD VSS DQ32 DQ33 VSS /DQS4 DQS4 VSS DQ34 DQ35 VSS DQ40 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 od /DQS10 VSS 195 196 NC 197 NC 198 VSS 199 DQ14 200 DQ15 VSS 201 202 DQ20 203 DQ21 VSS 204 205 DQS11 206 /DQS11 VSS DQ22 207 208 209 uc DQS13 /DQS13 VSS DQ38 DQ39 VSS t DQ44 DQ45 2 EBE21RD4AEFA-6 Pin No. 30 31 32 33 34 35 36 37 38 39 40 Pin name DQ18 DQ19 VSS DQ24 DQ25 VSS /DQS3 DQS3 VSS DQ26 DQ27 VSS Pin No. 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 Pin name DQ41 VSS /DQS5 DQS5 VSS DQ42 DQ43 VSS DQ48 DQ49 VSS SA2 NC VSS /DQS6 DQS6 VSS DQ50 DQ51 VSS DQ56 DQ57 VSS Pin No. 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 Pin name DQ23 VSS DQ28 DQ29 VSS DQS12 /DQS12 VSS DQ30 DQ31 VSS CB4 CB5 VSS DQS17 /DQS17 VSS CB6 CB7 VSS VDD CKE1 VDD NC NC VDD A12 A9 VDD A8 Pin No. www.DataSheet4U.com Pin name 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 VSS DQS14 /DQS14 VSS DQ46 DQ47 VSS DQ52 DQ53 VSS NC NC VSS DQS15 /DQS15 VSS DQ54 DQ55 VSS DQ60 DQ61 VSS DQS16 /DQS16 VSS DQ62 DQ63 VSS VDDSPD SA0 SA1 EO 41 42 CB0 43 44 CB1 VSS 45 /DQS8 DQS8 46 47 VSS CB2 48 49 50 51 52 53 54 55 56 57 58 59 60 CB3 VSS VDD CKE0 VDD NC NC/Err_Out VDD A11 A7 VDD A5 Data Sheet E0739E11 (Ver. 1.1) L 109 110 111 112 113 114 115 116 11.


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