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Triton 发表于 2009-6-5 16:39

从DDR2到DDR3的设计考虑--DesignCon2007

The emerging DDR3 memory standard will extend the performance range of DDR
memories considerably, while maintaining some amount of backwards compatibility with
the existing DDR2 memory standard. It is important to understand the similarities and
differences between the DDR3 standard and the existing DDR2 standard in order to get
the maximum benefit from the new standard while re-using as much as possible from any
previous DDR2 memory interface design. This paper will provide the reader with a
detailed understanding of the key design considerations when migrating to a DDR3
system interface from a DDR2 interface.

关键词 DDR2 DDR3 系统接口 DIMM DDR2与DDR3相同和不同之处

建议参考 [url=http://www.pcbsi.com/viewthread.php?tid=40]DDR3基础及设计中的SI和时序问题[/url]

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kkliaw77 发表于 2009-8-6 12:09

thanks for sharing

zomin 发表于 2009-8-6 17:34

有段话挺有意思的：

One of the biggest issues when thinking of migrating from DDR2 to DDR3 is that the
DIMM have different pin-outs and sizes. This means that it will be very difficult, at the
board level to just plug in a new memory module. The best you can hope for is to take
into account some of the other key characteristics and make it easy to spin the board for a
DDR3 module. Probably the most important items to take care of at the board level will
be DQS, the Reset pin.
DQS

changhlg 发表于 2009-8-14 14:49

Thanks for your sharing

changhlg 发表于 2009-8-18 18:16

Thanks for your sharing

2009zenglei 发表于 2009-8-21 00:03

好东西，学习一下

2009zenglei 发表于 2009-8-21 00:03

谢谢楼主。

2009zenglei 发表于 2009-8-21 00:04

正想学习相关的东西

lqb168 发表于 2009-8-22 08:22

Thanks for your sharing

hyacinth 发表于 2009-9-11 15:11

谢谢楼主!

leoliu0804 发表于 2010-4-22 14:49

多谢多谢

cht0819 发表于 2010-5-6 16:59

Thank you for your sharing

fred4SI 发表于 2010-7-12 17:07

应该不错，　看看

tianjifeihong 发表于 2010-7-13 21:46

学习一下！谢谢分享

pumpkin 发表于 2010-8-10 20:04

谢谢啦:D:D

329823796 发表于 2010-12-10 20:39

十分感谢

mzh1983 发表于 2010-12-16 12:32

好东西，学习了

fish31 发表于 2010-12-28 08:33

Thanks for your sharing

fish31 发表于 2010-12-28 08:44

for [url]http://bbs.eetop.cn/viewthread.php?tid=267297&extra=&page=1[/url]

host_aa 发表于 2011-3-9 09:29

ding!!!!!!!!!!!!!!!!

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