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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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The Core i7 supports only DDR3. Retrieved 12 October Of these non-standard specifications, the highest reported speed reached was equivalent to DDR, as of May DDR3 prototypes were announced in early Devices that require DDR3L, which operate at 1.

DDR3 memory utilises serial presence detect.

The DDR3L standard is 1. The CPU’s integrated memory controller can then work with either. Under this convention PC is listed as PC There is some improvement because DDR3 generally uses more recent manufacturing processes, but this is not directly caused by the change to DDR3.

DDR3 SDRAM – Wikipedia

CL — CAS Latency clock cyclesbetween sending a column address to the memory and the beginning of the data in response. By using this site, you agree to the Terms of Use and Privacy Policy. Archived from the original on Dynamic random-access memory DRAM. As with earlier memory generations, faster DDR3 memory became available after the release of the initial versions.


Not only are they keyed differently, but DDR2 has rounded notches on the side and the DDR3 modules have square notches on the side.

It jedwc typically used during the power-on self-test for automatic configuration of memory modules. Archived from the original on April 13, Archived from the dcr3 on December 19, It is also misleading because various memory timings are given in units of clock cycles, which are half the speed of data transfers. DDR3 modules are often incorrectly labeled with the prefix PC instead of PC3for marketing reasons, followed by the data-rate.

Retrieved from ” https: From Wikipedia, the free encyclopedia. This reduction comes from the difference in supply voltages: All articles with unsourced statements Articles with unsourced statements from March DDRDand capacity variants, modules can be one of the following:.

High-performance graphics was an initial driver specificstion such bandwidth requirements, where high bandwidth data transfer between framebuffers is required.

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

For the graphics memory, see GDDR3. Memory standards on the way”. Retrieved 19 March This article is about the computer main memory. Another benefit is its prefetch bufferwhich is 8-burst-deep.



Archived from the original PDF on Bandwidth is calculated by taking transfers per second and multiplying by eight. Some manufacturers also round to a certain precision or round up instead. This advantage is an enabling technology in DDR3’s transfer speed. In other projects Wikimedia Commons.

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. In addition to bandwidth designations e. This is because DDR3 memory modules transfer data on a bus that is 64 data bits wide, and since a byte comprises 8 bits, this equates to 8 bytes of data per transfer.

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This page was edr3 edited on 17 Novemberat For the video game, see Dance Dance Revolution 3rdMix. The actual DRAM arrays that store the data are similar to earlier types, with similar performance. Retrieved 12 December