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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Bandwidth is calculated by taking transfers per second and multiplying by eight. Not only are they keyed differently, but DDR2 has rounded notches on the side and the DDR3 modules have square notches on the side. High-performance graphics specificarion an initial driver of such bandwidth requirements, where high bandwidth data transfer between framebuffers is required.
For specificatiom video game, see Dance Dance Revolution 3rdMix. There is some improvement because DDR3 generally uses more recent manufacturing processes, but this is not directly caused by the change to DDR3. The CPU’s integrated memory controller can then work with either. This article is about the computer main memory. DDRDand capacity variants, modules can be one of the following:. DDR3 memory utilises serial presence detect.
AR# MIG Virtex-6 DDR2/DDR3 JEDEC Specification – Additive Latency
Because the hertz is a measure of spscification 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. Retrieved 12 December Archived from the original on December 19, Of these non-standard specifications, the highest reported speed reached was equivalent to DDR, as of May All articles with unsourced statements Specidication with unsourced statements from March Retrieved 19 March Views Read Edit View history.
The Core i7 supports only DDR3. Dynamic random-access memory DRAM.
Archived from the original on DDR3 modules are often incorrectly labeled with the prefix PC instead of PC3for marketing reasons, followed by the data-rate. Under this convention PC is listed as PC CL — CAS Latency clock cyclesbetween sending a column address to the memory and the beginning of the data in response. Another benefit is its prefetch bufferwhich is 8-burst-deep.
Retrieved 12 October This page was last edited on 17 Novemberat For the graphics memory, see GDDR3. The Jecec standard is 1.
DDR3 SDRAM – Wikipedia
Archived from the original PDF on Memory standards on jeec way”. It is also misleading because various memory timings are given in units of clock cycles, which are half the speed of data transfers. It is typically used during the power-on self-test for automatic configuration of memory modules.