This section of the MIG Design Assistant focuses on the Additive Latency, defined by the JEDEC Spec,as it applies to the MIG Virtex-6 DDR3 design. NOTE: This. JEDEC. STANDARD. Double Data Rate (DDR). SDRAM Specification The information included in JEDEC standards and publications represents a sound. Micron Technology, Inc. All rights reserved. Products and specifications discussed herein are subject to change by Micron without notice.

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Archived from the original on April 13, Another benefit is its prefetch bufferwhich is 8-burst-deep. Because the hertz is a measure of cycles per second, and no signal cycles more often than every other transfer, describing the transfer rate in units of MHz is technically incorrect, although very common.

Views Read Edit View history. It is typically used during the power-on self-test for automatic configuration of memory modules.

DDR3 modules are often incorrectly labeled with the prefix PC instead of PC3for marketing reasons, followed by the data-rate. DDRDand capacity variants, modules can be one of the following:. This page was last edited on 17 Novemberat The actual DRAM arrays that store the data are similar to earlier types, with similar performance.

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AR# MIG Virtex-6 DDR2/DDR3 JEDEC Specification – Additive Latency

High-performance graphics was an initial driver of such bandwidth requirements, where high bandwidth data transfer specificatioh framebuffers is required. Not only are they keyed differently, but DDR2 has rounded notches on the side and the DDR3 modules have square notches on the side.

From Wikipedia, the free encyclopedia. This article is about the computer main memory. DDR3 memory utilises serial presence detect.

CL — CAS Latency clock cyclesbetween sending a column address to the memory and the beginning of the data in response. Dynamic random-access memory DRAM. This is because DDR3 memory modules transfer data on a bus that is 64 data bits wide, and since a byte dvr3 8 bits, this equates to 8 bytes of data per transfer.

DDR3 SDRAM – Wikipedia

In addition to bandwidth designations e. Archived from the original PDF on The Core i7 supports only DDR3.

Memory standards on the way”. In other projects Wikimedia Commons. Archived from the original on December 19, This reduction comes from the difference in supply voltages: All articles with unsourced statements Articles with unsourced statements from March Retrieved 19 March For the video game, see Dance Dance Revolution 3rdMix.

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The CPU’s integrated memory controller can then work with either. Retrieved 12 December The DDR3L standard is 1.

DDR3 SDRAM

Archived from the original on Of these non-standard specifications, the highest reported speed reached was equivalent to DDR, as of May Some manufacturers also round to a certain precision or spcification up instead. For the graphics memory, see GDDR3. Under this convention PC is listed as PC