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- DDR2_SDRAM abstract "DDR2 SDRAM is a double data rate synchronous dynamic random-access memory interface. It superseded the original DDR SDRAM specification, and has since been superseded by DDR3 SDRAM. DDR2 DIMMs are neither forward compatible with DDR3 nor backward compatible with DDR.In addition to double pumping the data bus as in DDR SDRAM (transferring data on the rising and falling edges of the bus clock signal), DDR2 allows higher bus speed and requires lower power by running the internal clock at half the speed of the data bus. The two factors combine to produce a total of four data transfers per internal clock cycle. With data being transferred 64 bits at a time, DDR2 SDRAM gives a transfer rate of (memory clock rate) × 2 (for bus clock multiplier) × 2 (for dual rate) × 64 (number of bits transferred) / 8 (number of bits/byte). Thus with a memory clock frequency of 100 MHz, DDR2 SDRAM gives a maximum transfer rate of 3200 MB/s.Since the DDR2 internal clock runs at half the DDR external clock rate, DDR2 memory operating at the same external data bus clock rate as DDR results in DDR2 being able to provide the same bandwidth but with higher latency. Alternatively, DDR2 memory operating at twice the external data bus clock rate as DDR may provide twice the bandwidth with the same latency. The best-rated DDR2 memory modules are at least twice as fast as the best-rated DDR memory modules.".
- DDR2_SDRAM thumbnail High_Performance_RAM.jpg?width=300.
- DDR2_SDRAM wikiPageExternalLink EEOL_2006OCT16_INTD_STOR_TA.pdf.
- DDR2_SDRAM wikiPageExternalLink www.jedec.org.
- DDR2_SDRAM wikiPageExternalLink standards-documents.
- DDR2_SDRAM wikiPageExternalLink jesd-79-2e.
- DDR2_SDRAM wikiPageExternalLink index.php?option=com_content&task=view&id=35&Itemid=60.
- DDR2_SDRAM wikiPageExternalLink core2duo-memory-guide.html.
- DDR2_SDRAM wikiPageID "270263".
- DDR2_SDRAM wikiPageRevisionID "602201432".
- DDR2_SDRAM hasPhotoCollection DDR2_SDRAM.
- DDR2_SDRAM subject Category:SDRAM.
- DDR2_SDRAM comment "DDR2 SDRAM is a double data rate synchronous dynamic random-access memory interface. It superseded the original DDR SDRAM specification, and has since been superseded by DDR3 SDRAM.".
- DDR2_SDRAM label "DDR2 SDRAM".
- DDR2_SDRAM label "DDR2 SDRAM".
- DDR2_SDRAM label "DDR2 SDRAM".
- DDR2_SDRAM label "DDR2 SDRAM".
- DDR2_SDRAM label "DDR2 SDRAM".
- DDR2_SDRAM label "DDR2 SDRAM".
- DDR2_SDRAM label "DDR2 SDRAM".
- DDR2_SDRAM label "DDR2".
- DDR2_SDRAM label "DDR2".
- DDR2_SDRAM label "ذواكر الـddr2".
- DDR2_SDRAM sameAs DDR2.
- DDR2_SDRAM sameAs DDR2_SDRAM.
- DDR2_SDRAM sameAs DDR2_SDRAM.
- DDR2_SDRAM sameAs DDR2_SDRAM.
- DDR2_SDRAM sameAs DDR2.
- DDR2_SDRAM sameAs DDR2_SDRAM.
- DDR2_SDRAM sameAs DDR2_SDRAM.
- DDR2_SDRAM sameAs DDR2.
- DDR2_SDRAM sameAs DDR2_SDRAM.
- DDR2_SDRAM sameAs m.01nt59.
- DDR2_SDRAM sameAs Q847146.
- DDR2_SDRAM sameAs Q847146.
- DDR2_SDRAM wasDerivedFrom DDR2_SDRAM?oldid=602201432.
- DDR2_SDRAM depiction High_Performance_RAM.jpg.
- DDR2_SDRAM isPrimaryTopicOf DDR2_SDRAM.
