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DDR-2 533MHz Memory Royal Rumble - September 2004

By: Shawn Baker | DDR-2 Memory in RAM | Posted: Sep 17, 2004 4:00 am

TwinMOS DDR-2 533MHz using Samsung chip


- Specifications


JEDEC Standard




Date Rate:533MHz


Double Data Rate architecture


Differential Data Stroge (DQS)


Differential clock inputs (CK and /CK)


MRS cycle with address key programs


* CAS latency: 3, 4& 5


* Burst length: 4 & 8


* Burst type: Nibble Sequential & Interleave


2 variations of refresh


*Auto refresh & Self refresh


- The Packaging


TwinMOS have a Dual Channel kit package that is really simple yet effective. The thing with packaging these days is that a lot of users are quite aware of what they want when they are buying this level of memory so companies should feel that don't have to spend extra money on packaging.


- The Modules


TwinMOS like Kingmax are also utilizing the Samsung chips but have chosen to use a different density as these are 512MB single sided modules so instead of utilizing 8 X 32 chips which when using 16 chips gives you 512MB, TwinMOS are using 8 X 64 chips which give you a single sided module.


This is usually a little bit more expensive though because there are fewer chips there is meant to be less noise and interference within the PCB. We will see if this gives us any performance increase, in the past we haven't seen much but DDR-2 may be different.



As you can see TwinMOS have also chosen not to use a heat spreader on these modules. With this said they have chosen to include the heat spreader on their Twister 2 series that we unfortunately don't have here today.


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