Corsair 2048 MB DDR SDRAM Server Memory Module PC2700 (333MHz)
Contents
1. ge mn CORSAIR Key Features Selection Guide t ooo o CM75SD2048RLP 2048 MB DDR Server Memory Module 184 pin dual in line memory module DIMM Power supply Vdd 2 6V 0 1V Vddq 2 5V 0 2V PC2100 PC2700 2 6V 0 1V PC3200 Double data rate architecture two data transfers per clock cycle Bidirectional data strobe DQS Differential clock inputs CK and CK DLL aligns DQ and DQS transition with CK transition Programmable Read latency 2 2 5 clock Programmable Burst length 2 4 8 Programmable Burst type sequential amp interleave Edge aligned data output center aligned data input Auto amp Self refresh 7 8us refresh interval 8K 64ms refresh Serial presence detect with EEPROM Low Profile form factor ideal for 1U rack mount servers T CM75SD2048RLP xxxx x i CORSAIR MEMORY SPEED RAM VENDOR MODULE SIZE 2100 PC2100 266MHz M Micron 2048 MByte 2700 PC2700 333MHz N Infineon 3200 PC3200 400MHz S Samsung www corsairmemory com 2048 MB DDR Server Memory Module AI General Description The CM75SD2048RLP is a Synchronous Dynamic RAM Dual Inline Memory Module DIMM designed for applications in which both performance and density are critical The low 1 2 inch maximum height of this module makes it ideally suited for use in 1U rackmount servers and appliances This DIMM includes Error Checking and Correcting ECC for maximum reliability an2. 00 PC2700 2 values for PC3200 Page 5 CORSAIR 2048 MB DDR Server Memory Module AC Operating Conditions Parameter Condition Symbol OoOo Mn Max Input High Logic 1 Voltage DQ DQS and DM signals VIH AC VREF 0 31 ee VREF 0 31 Input Low Logic 0 Voltage DQ DQS and DM signals VIL AC r Input Differential Voltage CK and CK inputs VID AC VDDQ 0 6 Input Crossing Point Voltage CK and CK inputs VIX AC 0 5 VDDOQ 0 2 0 5 VDDQ 0 2 Note 1 VID is the magnitude of the difference between the input level on CK and the input on CK 2 The value of Viy is expected to equal 0 5 VY ppo of the transmitting device and must track variations in the DC level of the same 3 These parameters should be tested at the pim on actual components and may be checked at either the pin or the pad in simulation the AC and OC input specifications are in relation to a Vref envelope that has been bandwidth limited 20MHz Ve 0 5 VobDa Outputs Input capacitance so SS ee Data input output capacitance CBO CBY Page 6 CORSAIR Al 2048 MB DDR PC2700 Server Memory Module Package Configuration Units Millimeters 133 35 A 126 95 A 2x 3 00 MIN W1 O OAE pee OOO Y OT a b s MEE L i i 35 64 77 P2 Iiis a 4953 P3 a Skl 0 Sr Oe OS 6L a a E E a gL LA a 120 65 F1 _ LJ D 14 0 0 05 Lgl Os 070 Detail A Detail B Corsair Memory Inco
3. 8 MB DDR Server Memory Module VSS DOQ4 DQ5 VDDQ DMO0 DQS9 DQG DQ VSS NC NC NC VDDQ DQ12 DQ13 DM1 DQ310 VDD DQ14 DQ15 CKE1 VDDQ BAZ DQ20 A12 VSS DQ 1 A11 DM2 DQ511 VDD DQ2 2 A8 DQ23 VSS AG DQ28 DQ29 VDDQ DM3 DQ312 AS DQ30 VSS DOQ31 CB4 CBS VDDQ CKO CKO VSS DM8 DQS17 A10 CBG VDDQ CBf VSS DOQ36 DOQ37 VDD DM4 DQ313 DQ38 DQ39 VSS DOH IRAS DOQ45 VDDQ CSO C31 DM5 DQ514 VSS DOQ46 DOQ4 ICS3 VDDQ DQS52 DQ53 A13 YDD DM6 DQS15 DSA DQ55 VDDQ NC DQ60 DQ61 VSS DM7 DQS16 DQ62 DQ63 VDDQ SA0 SAT SA2 VDDSPD Page 3 2048 MB DDR Server Memory Module Functional Block Diagram Veo RCS RCSO paso DQs1 DOSI Dasa Das4 DSS DQSE Das Dass Cao cat DEZ CEBA Serial PD SCL WP z SAD SAI SA2 co w AS CS i RESI ZAD EA j RBAD REA __ pag sai DOR SDRAM oo oas ALATI A RAG RAGZ e ADAI ODR SORAM co pas RAE cA amS Ras ODA SORAM co pas DAS RAS cas DOR SORAM oo oss j RCKED cxe DOR SDRAM po p7 Rocke cae DOR SDRAM o13 os WE AWE Wwe DDA SDRAM co 03 mG RESET For Page 4 DMO DQS10 DM1 DQS11 DMZ pasi2 DM3 DQS13 DM4 DOSs14 DMS DQS15 DME DQS16 DM7 DaSI7 DMS SDA Notes 1 DO toH1 O wining is shown as recommended but may be changed 2 DO DQS DMICKE CS relationships must
4. be maintained as shown 3 DG DOS DM DQS resistors 22 Ohms aaa pasg 1a 4 Wa 2 Wi 1 Wo 2 iia 3 Vopsep SPO Voog DO D35 DO D35 VREF DO D35 Ves DO D35 CKO CKO PLL Wire per Clock Loading tablewiring Diagrams CORSAIR Al 2048 MB DDR Server Memory Module DC Electrical Specifications Absolute Maximum Ratings Note Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded Functional operation should be restricted to recommended operating condition Exposure to higher than recommended voltage for extended penods of time could affect device reliability Power amp DC Operating Conditions SSTL_2 In Out Recommended operating conditions Voltage referenced to VSs OV TA 0 to 70 C Supply voltage for device with a nominal VDD of 2 5 i ce E Supply voltage for device with a nominal VOD of 2 5V or Presets ee as ar lO Termination voltage system VREF 0 04 Input logic high voltage VREF 0 15 Input logic low voltage 0 3 Input Voltage Level CK and CK inputs VIN a5 0 3 input Differential Voltage CK and CK inputs DC Input leakage current Output leakage current Output High Current Normal strength driver Vout VTT 0 84V lOH Output High Current Normal strength driver Vout Vrr 0 84V ii Output High Current Half strength driver Mout Vir 045V i Output High Current Half strength driver VouT VTT 0 45V a L Notes 1 values for PC21
5. d has registered address and control signals to enable fully configured systems These modules are constructed using thirty six 128Mx4 SDRAMs in FBGA packages The module also includes an EEPROM to support Serial Pres ence Detect SPD requirements Decoupling capacitors are mounted on the printed circuit board for each SDRAM device The synchronous design of these Corsair SDRAM DIMMs allows precise cycle control with the use of the system clock I O transactions are pos sible on every clock cycle The high clock frequency and high density of this device enable a high level of performance to be achieved in advanced workstations and servers Pin Definitions O reson inName Function o CAS Address in EEPROM WE Write enable No connection CBO CB7 Check bit Data in data out COo g amp JA CORSAIR Page 2 Al Pin Configuration in Front 32 AS VREF DQO VSS DOQ1 DQSO DQ VDD DQ3 NC RESET VSS DQE DQg DST VDDQ CK1 ICK1 VSS DQ10 DQ11 CKEO VDDQ DQ16 DQ17 DQS2 VSS Ag DQ18 Af VDDQ DQ19 moc Ome 33 34 35 36 37 38 39 40 41 42 43 44 45 NC for this module CORSAIR DQ24 VSS DQ25 DQS3 Ag VDD DQ26 DOQ 7 A2 VSS Al CBO CBI VDD DQS8 AQ CB2 VSS CB3 BAI 62 93 VDDQ ANE DO41 ICAS VSS DQS5 DQ42 DQ43 VDD ICS2 DOQ48 DOQ449 VSS CK2 ICK2 VDDQ DQS6 DQ50 DQS51 VSS VDDID DQ56 DQS VDD DQS DQ58 DQS59 VSS NC SDA SCL 204
6. rporated June 2005 Corsair and the Corsair Logo are trademarks of Corsair Memory Incorporated All other trademarks are the property of their respective owners Corsair reserves the right to make changes without notice to any products herein Corsair makes no warranty representation or guarantee regarding the suitability of its products for any particular purpose nor does Corsair assume any liability arising out of the application of any product and specifically disclaims any and all liability including without limitation consequential or incidental damages Corsair does not convey any license under its patent rights nor the rights of others Corsair products are not designed intended or authorized for use in applications intended to support or sustain life or for any other application for which the failure of the Corsair product could create a situation in which personal injury or death may occur
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