![]() |
|
If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
Datasheet File OCR Text: |
hys64t32[0/9]00eu-[25f/2.5/3/3s/3.7]-b2 hys[64/72]t64[0/9]00eu -[25f/2.5/3/3s/3.7]-b2 hys[64/72]t128[0/9]20eu-[25f/2.5/3/3s/3.7]-b2 240-pin unbuffered ddr2 sdram modules udimm sdram rohs compliant internet data sheet rev. 1.01 january 2008
internet data sheet hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module qag_techdoc_rev411 / 3.31 qag / 2007-01-22 2 10202006-l0sm-feyt we listen to your comments any information within this document that yo u feel is wrong, unclear or missing at all? your feedback will help us to continuous ly improve the quality of this document. please send your proposal (including a reference to this document) to: techdoc@qimonda.com hys64t32[0/9]00eu-[25f/2.5/3/3s/3.7]-b2 , hys[64/72]t64[0/9]00eu-[25f/2.5/3/3s/3.7]-b2 , hys[64/72]t128[0/9]20eu- [25f/2.5/3/3s/3.7]-b2 revision history: 2008-01, rev. 1.01 page subjects (major chang es since last revision) all editorial change and adapted to internet edition previous revision: 2006-10, rev. 1.0 all qimonda update 4,5 ordering information table. added 6layerwhitebox products. 16 ? 20 block diagrams: clock signal load tables and notes updated 34,35 odt table update 38 ? 42 added idd values. 45 ? 92 spd codes updated. previous revision: 2006-07, rev. 0.5 hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module internet data sheet rev. 1.01, 2008-01 3 10202006-l0sm-feyt 1 overview this chapter gives an overview of the 240-pin unbuffered ddr2 sdram modules product family and describes its main characteristics. 1.1 features ? 240-pin pc2-6400, pc2-5300 and pc2-4200 ddr2 sdram memory modules. ? two ranks 128m 64, 128m 72, and one rank 32m 64, 64m 64, 64m 72 module organization, and 32m 16, 64m 8 chip organization ? 1gb, 512mb, 256mb modules built with 512mbit ddr2 sdrams in p-tfbga-60 a nd pg-tfbga-84 chipsize packages. ? standard double-data-rate-two synchronous drams (ddr2 sdram) with a single + 1.8 v ( 0.1 v) power supply. ? all speed grades faster than ddr2-400 comply with ddr2-400 timing specifications. ? programmable cas latencies (3, 4, 5 and 6 ), burst length (8 & 4). ? auto refresh (cbr) and self refresh. ? auto refresh for temperatures above 85 c t refi = 3.9 s. ? programmable self refres h rate via emrs2 setting. ? programmable partial array refresh via emrs2 settings. ? dcc enabling via emrs2 setting. ? all inputs and outputs sstl_1.8 compatible. ? off-chip driver impedance adjustment (ocd) and on-die termination (odt). ? serial presence detect with e 2 prom ? udimm and edimm dimensions (nominal): 30 mm high, 133.35 mm wide. ? based on standard reference layouts raw cards 'c', 'd', 'e', ?f' and 'g' ? rohs compliant products 1) table 1 performance table 1) rohs compliant product: restriction of the use of certain hazar dous substances (rohs) in el ectrical and electronic equipment as defined in the directive 2002/95/ec issued by the european parliament and of the council of 27 january 2003. these substances include m ercury, lead, cadmium, hexavalent chromium, polybro minated biphenyls and polybrominated biphenyl ethers. qag speed code ?25f ?2.5 ?3 ?3s ?3.7 unit dram speed grade ddr2 ?800d ?800e ?667c ?667d ?533c module speed grade pc2 ?6400d ?6400e ?5300c ?5300d ?4200c cas-rcd-rp latencies 5?5?5 6?6?6 4?4?4 5?5?5 4?4?4 t ck max. clock frequency cl3 f ck3 200 200 200 200 200 mhz cl4 f ck4 266 266 333 266 266 mhz cl5 f ck5 400 333 333 333 266 mhz cl6 f ck6 ?400???mhz min. ras-cas-delay t rcd 12.515121515ns min. row precharge time t rp 12.515121515ns min. row active time 1) 1) product released after 01-08-2007 will support t ras = 40 ns for all ddr2 speed sort. t ras 45 45 45 45 45 ns min. row cycle time t rc 57.560576060ns hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module internet data sheet rev. 1.01, 2008-01 4 10202006-l0sm-feyt 1.2 description the qimonda hys[64 /72]t[32/64 /128]xxxeu- [25f/2.5/3/3s/3.7]-b2 module family are unbuffered dimm modules ?udimms? with 30 mm height based on ddr2 technology. dimms are available as non-ecc modules in 128m 72 (1gb), 32m 64 (256mb), 64m 64 (512mb) and as ecc modules in 128m 72 (1gb), 64m 72 (512mb) in organization and density, intended for mounting into 240-pin connector sockets. the memory array is designed with 512mbit double-data- rate-two (ddr2) synchronous drams. decoupling capacitors are mounted on the pcb board. the dimms feature serial presence detect based on a serial e 2 prom device using the 2-pin i 2 c protocol. the first 128 bytes are programmed with configuration da ta and are write protected; the second 128 bytes are available to the customer. table 2 ordering information product type 1) compliance code 2) description sdram technology pc2-6400 (5-5-5) hys72t128920eu?25f?b2 1gb 2r 8 pc2?6400e?555?12?g0 2 ranks, non-ecc 512mbit ( 8) hys64t128920eu?25f?b2 1gb 2r 8 pc2?6400u?555?12?e0 2 ranks, non-ecc 512mbit ( 8) hys72t128020eu?25f?b2 1gb 2r 8 pc2?6400e?555?12?g0 2 ranks, non-ecc 512mbit ( 8) hys64t128020eu?25f?b2 1gb 2r 8 pc2?6400u?555?12?e0 2 ranks, non-ecc 512mbit ( 8) hys72t64900eu?25f?b2 512mb 1r 8 pc2?6400e?555?12?f0 1 rank, non-ecc 512mbit ( 8) hys64t64900eu?25f?b2 512mb 1r 8 pc2?6400u?555?12?d0 1 rank, non-ecc 512mbit ( 8) hys72t64000eu?25f?b2 512mb 1r 8 pc2?6400e?555?12?f0 1 rank, non-ecc 512mbit ( 8) hys64t64000eu?25f?b2 512mb 1r 8 pc2?6400u?555?12?d0 1 rank, non-ecc 512mbit ( 8) hys64t32900eu?25f?b2 256mb 1r 16 pc2?6400u?555?12?c1 1 rank, non-ecc 512mbit ( 16) hys64t32000eu?25f?b2 256mb 1r 16 pc2?6400u?555?12?c1 1 rank, non-ecc 512mbit ( 16) pc2-6400 (6-6-6) hys72t128920eu?2.5?b2 1gb 2r 8 pc2?6400e?666?12?g0 2 ranks, non-ecc 512mbit ( 8) hys64t128920eu?2.5?b2 1gb 2r 8 pc2?6400u?666?12?e0 2 ranks, non-ecc 512mbit ( 8) hys72t128020eu?2.5?b2 1gb 2r 8 pc2?6400e?666?12?g0 2 ranks, non-ecc 512mbit ( 8) hys64t128020eu?2.5?b2 1gb 2r 8 pc2?6400u?666?12?e0 2 ranks, non-ecc 512mbit ( 8) hys72t64900eu?2.5?b2 512mb 1r 8 pc2?6400e?666?12?f0 1 rank, non-ecc 512mbit ( 8) hys64t64900eu?2.5?b2 512mb 1r 8 pc2?6400u?666?12?d0 1 rank, non-ecc 512mbit ( 8) hys72t64000eu?2.5?b2 512mb 1r 8 pc2?6400e?666?12?f0 1 rank, non-ecc 512mbit ( 8) hys64t64000eu?2.5?b2 512mb 1r 8 pc2?6400u?666?12?d0 1 rank, non-ecc 512mbit ( 8) hys64t32900eu?2.5?b2 256mb 1r 16 pc2?6400u?666?12?c1 1 rank, non-ecc 512mbit ( 16) hys64t32000eu?2.5?b2 256mb 1r 16 pc2?6400u?666?12?c1 1 rank, non-ecc 512mbit ( 16) pc2-5300 (4-4-4) hys72t128920eu?3?b2 1gb 2r 8 pc2?5300e?444?12?g0 2 ranks, non-ecc 512mbit ( 8) hys64t128920eu?3?b2 1gb 2r 8 pc2?5300u?444?12?e0 2 ranks, non-ecc 512mbit ( 8) hys72t128020eu?3?b2 1gb 2r 8 pc2?5300e?444?12?g0 2 ranks, non-ecc 512mbit ( 8) hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module internet data sheet rev. 1.01, 2008-01 5 10202006-l0sm-feyt table 3 address format hys64t128020eu?3?b2 1gb 2r 8 pc2?5300u?444?12?e0 2 ranks, non-ecc 512mbit ( 8) hys72t64900eu?3?b2 512mb 1r 8 pc2?5300e?444?12?f0 1 rank, non-ecc 512mbit ( 8) hys64t64900eu?3?b2 512mb 1r 8 pc2?5300u?444?12?d0 1 rank, non-ecc 512mbit ( 8) hys72t64000eu?3?b2 512mb 1r 8 pc2?5300e?444?12?f0 1 rank, non-ecc 512mbit ( 8) hys64t64000eu?3?b2 512mb 1r 8 pc2?5300u?444?12?d0 1 rank, non-ecc 512mbit ( 8) hys64t32900eu?3?b2 256mb 1r 16 pc2?5300u?444?12?c1 1 rank, non-ecc 512mbit ( 16) hys64t32000eu?3?b2 256mb 1r 16 pc2?5300u?444?12?c1 1 rank, non-ecc 512mbit ( 16) pc2-5300 (5-5-5) hys72t128920eu?3s?b2 1gb 2r 8 pc2?5300e?555?12?g0 2 ranks, non-ecc 512mbit ( 8) hys64t128920eu?3s?b2 1gb 2r 8 pc2?5300u?555?12?e0 2 ranks, non-ecc 512mbit ( 8) hys72t128020eu?3s?b2 1gb 2r 8 pc2?5300e?555?12?g0 2 ranks, non-ecc 512mbit ( 8) hys64t128020eu?3s?b2 1gb 2r 8 pc2?5300u?555?12?e0 2 ranks, non-ecc 512mbit ( 8) hys72t64900eu?3s?b2 512mb 1r 8 pc2?5300e?555?12?f0 1 rank, non-ecc 512mbit ( 8) hys64t64900eu?3s?b2 512mb 1r 8 pc2?5300u?555?12?d0 1 rank, non-ecc 512mbit ( 8) hys72t64000eu?3s?b2 512mb 1r 8 pc2?5300e?555?12?f0 1 rank, non-ecc 512mbit ( 8) hys64t64000eu?3s?b2 512mb 1r 8 pc2?5300u?555?12?d0 1 rank, non-ecc 512mbit ( 8) hys64t32900eu?3s?b2 256mb 1r 16 pc2?5300u?555?12?c1 1 rank, non-ecc 512mbit ( 16) hys64t32000eu?3s?b2 256mb 1r 16 pc2?5300u?555?12?c1 1 rank, non-ecc 512mbit ( 16) pc2-4200 (4-4-4) hys72t128920eu?3.7?b2 1gb 2r 8 pc2?4200e?444?12?g0 2 ranks, non-ecc 512mbit ( 8) hys64t128920eu?3.7?b2 1gb 2r 8 pc2?4200u?444?12?e0 2 ranks, non-ecc 512mbit ( 8) hys72t128020eu?3.7?b2 1gb 2r 8 pc2?4200e?444?12?g0 2 ranks, non-ecc 512mbit ( 8) hys64t128020eu?3.7?b2 1gb 2r 8 pc2?4200u?444?12?e0 2 ranks, non-ecc 512mbit ( 8) hys72t64900eu?3.7?b2 512mb 1r 8 pc2?4200e?444?12?f0 1 rank, non-ecc 512mbit ( 8) hys64t64900eu?3.7?b2 512mb 1r 8 pc2?4200u?444?12?d0 1 rank, non-ecc 512mbit ( 8) hys72t64000eu?3.7?b2 512mb 1r 8 pc2?4200e?444?12?f0 1 rank, non-ecc 512mbit ( 8) hys64t64000eu?3.7?b2 512mb 1r 8 pc2?4200u?444?12?d0 1 rank, non-ecc 512mbit ( 8) hys64t32900eu?3.7?b2 256mb 1r 16 pc2?4200u?444?12?c1 1 rank, non-ecc 512mbit ( 16) hys64t32000eu?3.7?b2 256mb 1r 16 pc2?4200u?444?12?c1 1 rank, non-ecc 512mbit ( 16) 1) for detailed information regarding product type of qimonda pleas e see chapter "product type nomenclature" of this datasheet. 2) the compliance code is printed on the module label and des cribes the speed grade, for example "pc2?6400e?555?12?g0" where 640 0e means unbuffered dimm modules with 6.40 gb/s ec module bandwidth and "555?12" means column address strobe (cas) latency =5, row column delay (rcd) latency = 5 and row precharge (rp) laten cy = 5 using the latest jedec spd revision 1.2 and produced on the raw card "g". dimm density module organization memory ranks ecc/ non-ecc # of sdrams # of row/bank/column bits raw card 1gb 128m 72 2 ecc 18 14/2/10 g 1gb 128m 64 2 non-ecc 16 14/2/10 e product type 1) compliance code 2) description sdram technology hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module internet data sheet rev. 1.01, 2008-01 6 10202006-l0sm-feyt table 4 components on modules 512mb 64m 72 1 ecc 9 14/2/10 f 512mb 64m 64 1 non-ecc 8 14/2/10 d 256mb 32m 64 1 non-ecc 4 13/2/10 c product type 1)2) 1) green product 2) for a detailed description of all functionalities of the dram components on these modules see the component data sheet. dram components 1) dram density dram organisation hys72t128920eu hyb18t512800b2f 512mbit 64m 8 hys64t128920eu hyb18t512800b2f 512mbit 64m 8 hys72t128020eu hyb18t512800b2f 512mbit 64m 8 hys64t128020eu hyb18t512800b2f 512mbit 64m 8 hys72t64900eu hyb18t512800b2f 512mbit 64m 8 hys64t64900eu hyb18t512800b2f 512mbit 64m 8 hys72t64000eu hyb18t512800b2f 512mbit 64m 8 hys64t64000eu hyb18t512800b2f 512mbit 64m 8 hys64t32900eu hyb18t512160b2f 512mbit 32m 16 hys64t32000eu hyb18t512160b2f 512mbit 32m 16 dimm density module organization memory ranks ecc/ non-ecc # of sdrams # of row/bank/column bits raw card hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module internet data sheet rev. 1.01, 2008-01 7 10202006-l0sm-feyt 2 pin configurations 2.1 pin configurations the pin configuration of the unbuffered ddr2 sdram dimm is listed by function in table 5 (240 pins). the abbreviations used in columns pin and buffer type are explained in table 6 and table 7 respectively. the pin numbering is depicted in figure 1 for non-ecc modules ( 64) and figure 2 for ecc modules ( 72). table 5 pin configuration of udimm ball no. name pin type buffer type function clock signals 185 ck0 i sstl clock signals 2:0, complement clock signals 2:0 the system clock inputs. a ll address and command li nes are sampled on the cross point of the rising edge of ck and the falling edge of ck . a delay locked loop (dll) circuit is driven from the clock inputs and output timing for read operations is synchronized to the input clock. 137 ck1 i sstl 220 ck2 i sstl 186 ck0 i sstl 138 ck1 i sstl 221 ck2 i sstl 52 cke0 i sstl clock enable rank 1:0 activates the ddr2 sdram ck signal when high and deactivates the ck signal when low. by deactivating the clocks, cke low initiates the power down mode or the self refresh mode. note: 2 ranks module 171 cke1 i sstl nc nc ? not connected note: 1 rank module control signals 193 s0 i sstl chip select rank 1:0 enables the associated ddr2 sdram command decoder when low and disables the command decoder when high. when the command decoder is disabled, new commands are ignored but previous operations continue. rank 0 is selected by s0 ; rank 1 is selected by s1 . ranks are also called "physical banks". note: 2 ranks module 76 s1 i sstl nc nc ? not connected note: 1 rank module 192 ras i sstl row address strobe when sampled at the cross point of th e rising edge of ck,and falling edge of ck , ras , cas and we define the operation to be executed by the sdram. 74 cas i sstl column address strobe hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module internet data sheet rev. 1.01, 2008-01 8 10202006-l0sm-feyt 73 we i sstl write enable address signals 71 ba0 i sstl bank address bus 1:0 selects which ddr2 sdram internal bank of four or eight is activated. 190 ba1 i sstl 54 ba2 i sstl bank address bus 2 greater than 512mb ddr2 sdrams nc nc ? not connected less than 1gb ddr2 sdrams 188 a0 i sstl address bus 12:0 during a bank activate command cycle, defines the row address when sampled at the crosspoint of the risi ng edge of ck and falling edge of ck . during a read or write command cycle, defines the column address when sampled at the cross point of the ri sing edge of ck and falling edge of ck . in addition to the column address, ap is used to invoke autoprecharge operation at the end of the burst read or write cycle. if ap is high , autoprecharge is selected and ba0-ban defines the bank to be precharged. if ap is low, autoprecharge is disabled. during a precharge command cycle, ap is used in conjunction with ba0-ban to control which bank(s) to precharge. if ap is high, all banks will be precharged regardl ess of the state of ba0-ban inputs. if ap is low, then ba0-ban are used to define which bank to precharge. 183 a1 i sstl 63 a2 i sstl 182 a3 i sstl 61 a4 i sstl 60 a5 i sstl 180 a6 i sstl 58 a7 i sstl 179 a8 i sstl 177 a9 i sstl 70 a10 i sstl ap i sstl 57 a11 i sstl 176 a12 i sstl 196 a13 i sstl address signal 13 note: 1 gbit based module and 512m u u nc nc ? not connected note: module based on 1 gbit u 16module based on 512 mbit u 16 or smaller 174 a14 i sstl address signal 14 note: modules based on 2 gbit nc nc ? not connected note: modules based on 1 gbit or smaller data signals 3 dq0 i/o sstl data bus 63:0 data input / output pins 4 dq1 i/o sstl 9 dq2 i/o sstl 10 dq3 i/o sstl 122 dq4 i/o sstl 123 dq5 i/o sstl 128 dq6 i/o sstl 129 dq7 i/o sstl ball no. name pin type buffer type function hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module internet data sheet rev. 1.01, 2008-01 9 10202006-l0sm-feyt 12 dq8 i/o sstl data bus 63:0 data input / output pins 13 dq9 i/o sstl 21 dq10 i/o sstl 22 dq11 i/o sstl 131 dq12 i/o sstl 132 dq13 i/o sstl 140 dq14 i/o sstl 141 dq15 i/o sstl 24 dq16 i/o sstl 25 dq17 i/o sstl 30 dq18 i/o sstl 31 dq19 i/o sstl 143 dq20 i/o sstl 144 dq21 i/o sstl 149 dq22 i/o sstl 150 dq23 i/o sstl 33 dq24 i/o sstl 34 dq25 i/o sstl 39 dq26 i/o sstl 40 dq27 i/o sstl 152 dq28 i/o sstl 153 dq29 i/o sstl 158 dq30 i/o sstl 159 dq31 i/o sstl 80 dq32 i/o sstl 81 dq33 i/o sstl 86 dq34 i/o sstl 87 dq35 i/o sstl 199 dq36 i/o sstl 200 dq37 i/o sstl 205 dq38 i/o sstl 206 dq39 i/o sstl 89 dq40 i/o sstl 90 dq41 i/o sstl 95 dq42 i/o sstl 96 dq43 i/o sstl 208 dq44 i/o sstl 209 dq45 i/o sstl 214 dq46 i/o sstl 215 dq47 i/o sstl ball no. name pin type buffer type function hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module internet data sheet rev. 1.01, 2008-01 10 10202006-l0sm-feyt 98 dq48 i/o sstl data bus 63:0 data input / output pins 99 dq49 i/o sstl 107 dq50 i/o sstl 108 dq51 i/o sstl 217 dq52 i/o sstl 218 dq53 i/o sstl 226 dq54 i/o sstl 227 dq55 i/o sstl 110 dq56 i/o sstl 111 dq57 i/o sstl 116 dq58 i/o sstl 117 dq59 i/o sstl 229 dq60 i/o sstl 230 dq61 i/o sstl 235 dq62 i/o sstl 236 dq63 i/o sstl check bit signals 42 cb0 i/o sstl check bit 0 note: ecc type module only nc nc ? not connected note: ecc type module only 43 cb1 i/o sstl check bit 1 note: ecc type module only nc nc ? not connected note: ecc type module only 48 cb2 i/o sstl check bit 2 note: ecc type module only nc nc ? not connected note: ecc type module only 49 cb3 i/o sstl check bit 3 note: ecc type module only nc nc ? not connected note: ecc type module only 161 cb4 i/o sstl check bit 4 note: ecc type module only nc nc ? not connected note: ecc type module only 162 cb5 i/o sstl check bit 5 note: ecc type module only nc nc ? not connected note: ecc type module only ball no. name pin type buffer type function hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module internet data sheet rev. 1.01, 2008-01 11 10202006-l0sm-feyt 167 cb6 i/o sstl check bit 6 note: ecc type module only nc nc ? not connected note: ecc type module only 168 cb7 i/o sstl check bit 7 note: ecc type module only nc nc ? not connected note: non-ecc module data strobe bus 7 dqs0 i/o sstl data strobe bus 8:0 the data strobes, associated with one data byte, sourced with data transfers. in write mode, the data strobe is source d by the controller and is centered in the data window. in read mode the data strobe is sourced by the ddr2 sdram and is sent at the leadi ng edge of the data window. dqs signals are complements, and timing is relative to the crosspoint of respective dqs and dqs . if the module is to be operated in single ended strobe mode, all dqs signals must be tied on the system board to v ss and ddr2 sdram mode registers programmed appropriately. note: see block diagram for corresponding dq signals 16 dqs1 i/o sstl 28 dqs2 i/o sstl 37 dqs3 i/o sstl 84 dqs4 i/o sstl 93 dqs5 i/o sstl 105 dqs6 i/o sstl 114 dqs7 i/o sstl 46 dqs8 i/o sstl 6 dqs0 i/o sstl complement data strobe bus 8:0 note: see block diagram for corresponding dq signals 15 dqs1 i/o sstl 27 dqs2 i/o sstl 36 dqs3 i/o sstl 83 dqs4 i/o sstl 92 dqs5 i/o sstl 104 dqs6 i/o sstl 113 dqs7 i/o sstl 45 dqs8 i/o sstl data mask signals 125 dm0 i sstl data mask bus 8:0 the data write masks, a ssociated with one data byte. in write mode, dm operates as a byte mask by allowing input data to be written if it is low but blocks the write operation if it is high. in read mode, dm lines have no effect. note: see block diagram for corresponding dq m signals 134 dm1 i sstl 146 dm2 i sstl 155 dm3 i sstl 202 dm4 i sstl 211 dm5 i sstl 223 dm6 i sstl 232 dm7 i sstl 164 dm8 i sstl eeprom 120 scl i cmos serial bus clock this signal is used to clock data into and out of the spd eeprom. ball no. name pin type buffer type function hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module internet data sheet rev. 1.01, 2008-01 12 10202006-l0sm-feyt 119 sda i/o od serial bus data this is a bidirectional pin used to transfer data into or out of the spd eeprom. a resistor must be connected from sda to v ddspd on the motherboard to act as a pull-up. 239 sa0 i cmos serial address select bus 2:0 address pins used to select the serial presence detect base address. 240 sa1 i cmos 101 sa2 i cmos power supplies 1 v ref ai ? i/o reference voltage reference voltage for the sstl-18 inputs. 238 v ddspd pwr ? eeprom power supply power supplies for core, i/o, serial presence detect, and ground for the module. 51,56,62,72,75,, 78,170,175,181,, 191,194 v ddq pwr ? i/o driver power supply 53,59,64,67,69,, 172,178,184,187, 189,197 v dd pwr ? power supply power supplies for core, i/o, serial presence detect, and ground for the module. 2,5,8,11,14,17,, 20,23,26,29,32, 35,38,41,44,47,, 50,65,66,79,82, 85,88,91,94,97,, 100,103,106, 109,112,115,118, 121,124,127,, 130,133,136,139, 142,145,148,, 151,154,157,160, 163,166,169, 198,201,204,207, 210,213,216,, 219,222,225,228, 231,234,237 v ss gnd ? ground plane power supplies for core, i/o, serial presence detect, and ground for the module. other pins 195 odt0 i sstl on-die termination control 0 77 odt1 i sstl on-die termination control 1 asserts on-die termination for dq, dm, dqs, and dqs signals if enabled via the ddr2 sdram mode register. note: 2 rank modules nc nc ? not connected note: 1 rank modules 18,19,55,68,102,1 26,135,147, 156,165,173,203, 212, 224,233 nc nc ? not connected note: pins not connected on infineon udimms ball no. name pin type buffer type function hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module internet data sheet rev. 1.01, 2008-01 13 10202006-l0sm-feyt table 6 abbreviations for pin type table 7 abbreviations for buffer type abbreviation description i standard input-only pin. digital levels. o output. digital levels. i/o i/o is a bidirectional input/output signal. ai input. analog levels. pwr power gnd ground nc not connected abbreviation description sstl serial stub terminated logic (sstl_18) lv-cmos low voltage cmos cmos cmos levels od open drain. the corresponding pin has 2 oper ational states, active low and tri-state, and allows multiple devices to share as a wire-or. hys[64/72]t[32/64/ 128]xxxeu-[25f/2.5/3/3s/3.7]-b2 unbuffered ddr2 sdram module internet data sheet rev. 1.01, 2008-01 14 10202006-l0sm-feyt figure 1 pin configuration udimm u 72 (240 pin) 0 3 3 7 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 3 l q 9 5 ( ) ' 4 9 6 6 ' 4 6 ' 4 9 6 6 ' 4 ' 4 6 9 6 6 1 & |