DDR Memory

DDR SDRAM Memory

(double data rate synchronous dynamic random access memory) is a class of memory integrated circuit used in computers. It achieves nearly twice the bandwidth of the preceding [single data rate] SDRAM by double pumping (transferring data on the rising and falling edges of the clock signal) without increasing the clock frequency. With data being transferred 64 bits at a time, DDR SDRAM gives a transfer rate of (memory bus clock rate) × 2 (for dual rate) × 64 (number of bits transferred) / 8 (number of bits/byte). Thus with a bus frequency of 100 MHz, DDR SDRAM gives a maximum transfer rate of 1600 MB/s. JEDEC has set standards for speeds of DDR SDRAM, divided into two parts: The first specification is for memory chips and the second is for memory modules. As DDR-SDRAM is superseded by the newer DDR2 SDRAM, the older version is sometimes referred to as DDR1-SDRAM.

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	PC2100 DDR266 100-pin SODIMM Memory (100 Pin DDR 266MHz SODIMM for Printers) 64MB 100p PC2100 DDR-266 CL2.5 DDR SODIMM (p/n BOK) - 128MB 100-pin PC2100 DDR Printer SODIMM (p/n AED) - 256MB 100-pin PC2100 DDR Printer SODIMM (p/n AEE) -


	PC2100 DDR266 184-Pin UDIMM Memory (184 Pin DDR 266MHz Non ECC for Desktops) 128MB 184-pin PC2100 CL2.5 DDR266 non-ECC DIMM (p/n ACU) - 256MB 184-pin PC2100 DDR266 non-ECC SDRAM DIMM (p/n ADI) - 256MB 184p PC2100 CL2.5 DDR DIMM (p/n ALQ) - 512MB 184-pin PC2100 nonECC nonRegistered DDR-266 DIMM (p/n ACS) - 512MB 184pin PC2100 CL2.0 nonECC nonRegistered DIMM (p/n AGA)


	PC2100 DDR266 184-Pin ECC UDIMM Memory (184 Pin DDR 266MHz ECC DIMM for Desktops) 256MB 184-pin PC2100 CL2.5 9c ECC DDR266 DIMM (p/n AJL) - 512MB PC2100 CL2 ECC 184-pin DDR266 DIMM (p/n AQG) - 512MB PC2100 CL2.5 ECC 184-pin DDR266 DIMM (p/n AGI) - 1GB 184-pin PC2100 CL2 ECC DDR266 DIMM (p/n ADN) - 1GB 184-pin PC2100 CL2.5 ECC DDR266 DIMM (p/n AHX)

PC2100 DDR266 CL2 184-Pin ECC Registered DIMM Memory

(184 Pin CL2 DDR 266MHz Registered for Servers)

128MB 184-pin PC2100 Registered ECC DDR266 DIMM (p/n AQO) - 256MB PC2100 CL2 9-chip Registered ECC 184-pin DDR266 DIMM (p/n AGF) - 512MB 184-pin PC2100 CL2 18-chip 64x4 Single-Bank Registered ECC DIMM (p/n AFO) - 1GB 2-in 184-pin PC2100 Registered ECC DDR SDRAM DIMM (p/n AAG) - 1GB PC2100 CL2 DDR-266 184-Pin ECC Registered DIMM (p/n AVP)

PC2100 DDR266 CL2.5 184-Pin ECC Registered DIMM Memory

256MB 184-pin PC2100 CL2.5 18-chip 32x4 Single-Bank Registered ECC DIMM (p/n AGG) - 256MB Infineon PC2100 CL2.5 9-chip Registered ECC 184-pin DDR266 DIMM (p/n ABH) - 512MB PC2100 CL2.5 DDR266 184-Pin ECC Registered DIMM Memory (p/n AEX) - 512MB 184-pin PC2100 CL2.5 18-chip 32x8 Double Bank Registered ECC DDR DIMM (p/n AMC) - 1GB 184-pin PC2100 CL2.5 36-chip 32x8 Registered ECC DDR266 DIMM (p/n AMD)


	PC2100 DDR266 200-Pin SODIMM Memory (DDR 266MHz 200 Pin Laptop Memory) 128MB PC2100 DDR266 200-Pin SODIMM(p/n APA) - 128MB 200p PC2100 CL2 DDR SODIMM (p/n BKX) - 128MB 200p PC2100 CL2.5 8c DDR SODIMM (p/n ARC) - 256MB 200-pin PC2100 CL2.5 DDR SODIMM Memory (p/n ADD) - 256MB 200-pin PC2100 CL2.5 4-Chip 32x16 DDR SODIMM Memory (p/n AHI)


	PC2700 DDR333 172-Pin MicroDIMM Memory (PC2700 DDR-333 172-pin microDIMM Laptop Memory) 256MB Micron Laptop PC2700 DDR333 microDIMM (p/n AFK) - 512MB PC2700 DDR333 172-pin Laptop microDIMM (p/n ACX) - 1GB Laptop PC2700 172-pin DDR333 MicroDIMM (p/n AJM) - 512MB 172p PC2700 16c DDR333 MicroDIMM (p/n AFD) - 512MB 172p PC2700 DDR333 microDIMM (p/n BWO)


	PC2700 DDR333 184-Pin UDIMM Memory (184 Pin DDR 333MHz Non ECC for Desktops) 128MB PC2700 DDR-333 184-Pin DIMM Memory (p/n AJW) - 256MB 184-Pin PC2700 DDR-333 DIMM Memory (p/n ADY) - 256MB 184p PC2700 CL2.5 DDR DIMM (p/n BTY) - 256MB 184p PC2700 CL2.5 DDR DIMM (p/n BVW) - 512MB 184-pin PC2700 16-chip 32x8 DDR333 DIMM (p/n ACA)


	PC2700 DDR333 184-Pin ECC UDIMM Memory (184 Pin DDR 333MHz ECC for Desktops) 256MB 184-pin PC2700 ECC DDR333 DIMM (p/n ALN) - 512MB PC2700 184-pin Double-Bank ECC DDR333 nonRegistered DIMM (p/n AEN) - 512MB 184p PC2700 CL2.5 ECC DDR DIMM (p/n CPA) - 1GB PC2700 CL2.5 184-pin ECC DDR-333 DIMM (p/n AMM) -

PC2700 DDR333 184-Pin ECC Registered DIMM

(184 Pin DDR 333MHz Registered for Servers)

256MB 184-pin PC2700 CL2.5 Registered ECC DDR DIMM (p/n AIR) - 512MB PC2700 DDR333 CL2.5 x4 Single-Rank Registered ECC 184-pin DIMM (p/n AVG) - 512MB PC2700 DDR333 CL2.5 x8 Single-Rank Registered ECC 184-pin DIMM (p/n BAB) - 512MB PC2700 DDR333 CL2.5 x8 Dual-Rank Registered ECC 184-pin DIMM (p/n BAC) - 1GB PC2700 DDR333 CL2.5 x8 Dual-Rank Registered ECC 184-pin DIMM (p/n ADK)


	PC2700 DDR333 200-Pin SODIMM Memory (DDR 333MHz 200-Pin Laptop Memory) 128MB PC2700 CL2.5 200pin DDR SODIMM (p/n CPL) - 256MB 200-pin PC2700 CL2.5 DDR333 SODIMM Memory (p/n ABU) - 256MB 200p PC2700 CL2.5 8c 32x8 DDR SODIMM (p/n AGU) - 256MB 200p PC2700 CL2.5 ECC DDR SODIMM (p/n CPI) - 256MB PC2700 4c 64x8 200pin DDR SODIMM (p/n CBU)


	PC3200 DDR400 184-Pin non-ECC UDIMM (184-Pin DDR-400MHz Non-ECC for Desktops) 128MB TwinMOS 184-pin PC3200 DDR400 DIMM Memory (p/n ALG) - 256MB 184-Pin PC3200 CL3 DDR400 non-ECC DIMM (p/n AKF) - 256MB 184p PC3200 CL3 DDR DIMM (p/n BNI) - 512MB 184-pin PC3200 CL3 DDR400 DIMM (p/n CKE) - 512MB PC3200 CL2.5 184pin DDR400 DIMM (p/n ABF)


	PC3200 DDR400 184-Pin ECC UDIMM (184-Pin DDR-400MHz ECC non-registered for workstations) 256MB PC3200 CL3 ECC non-Registered DIMM (p/n ALD) - 256MB 184p PC3200 CL3 ECC DDR DIMM (p/n CPJ) - 512MB PC3200 ECC DDR400 DIMM (p/n AJG) - 1GB 184-pin PC3200 CL3 ECC DDR-400 DIMM (p/n AEI) - 1GB PC3200 CL3 DDR-400 VLP 184pin ECC DIMM (p/n CNR)


	PC3200 DDR400 184-Pin ECC Registered DIMM (184 Pin DDR 400MHz Registered for Servers) 512MB PC3200 Single Rank x8 ECC Registered DIMM (p/n BMJ) - 512MB 184-pin PC3200 CL3 18-chip SR 64x4 Registered DDR400 DIMM (p/n AOL) - 1GB PC3200 184-pin Registered ECC DDR400 DIMM (p/n AJC) - 2GB PC3200 184-pin Registered ECC DDR-400 DIMM (p/n AFZ) - 4GB PC3200 184-pin Registered ECC DDR-400 DIMM (p/n BPO)


	PC3200 DDR400 200-pin SODIMM (PC3200 Memory DDR400 200-Pin SODIMM) 256MB DDR400 PC3200 DDR 200-pin SODIMM (p/n AIW) - 512MB 200-pin DDR400 PC3200 SODIMM (p/n AKG) - 512MB 200p PC3200 CL3 8c DDR SODIMM (p/n AOY) - 512MB 200p PC3200 CL3 8c DDR SODIMM (p/nBMY) - 1GB PC3200 200-pin DDR400 SODIMM (p/n AHK)


	PC3500 DIMM (184 pin, DDR433 non-registered Over-clocked DIMM)


	PC3700 DIMM (184 pin, DDR466 non-registered DIMM) 256MB PC3700 DDR466 184-pin DIMM (p/n BDL) - 512MB Twinmos PC3700 CL2.5 DDR466 184-pin DIMM (p/n AHJ) -


	PC4000 DIMM (184 pin, DDR500 non-registered DIMM) 256MB TwinMos/Twister PC4000 184p DDR DIMM (XDS256) - 512MB TwinMos/Twister PC4000 184p DDR DIMM (p/n XDS512) -