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DDR3 Length Matching – Rules

This picture shows DDR3 memory groups and length matching requirements between them. The memory is DDR3 but it uses T-Branch topology:

We have created this picture based on iMX6 Design guide. Download the full iMX6 Design Guide from here or see at the Freescale website: http://cache.freescale.com/files/32bit/doc/user_guide/IMX6DQ6SDLHDG.pdf


Learn Advanced PCB Layout ONLINE

You will learn how to do Advanced PCB Layout (DDR3, PCIE, SATA, Ethernet, etc.).

How to register for this online course?

Step 1: Register & Login at FEDEVEL Academy website – Click here
Step 2: Select your course (you will need to be logged in) – Click here

Find out more about this course in this short introduction video


Learn Advanced Hardware Design ONLINE
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This course will show you how you can design boards more effectively and produce professional results. It provides you tips and tricks to help you to design boards that work the first time.

The course is practically based and will teach you everything by actually doing it. Anyone who is interested can work on his/her own project during the course. By the end of the course you will have learnt how to create professional manufacturing output which you can then use to build your own board.

How to register for this online course?

Step 1: Register & Login at FEDEVEL Academy website – Click here
Step 2: Select your course (you will need to be logged in) – Click here

Find out more about this course in this short (2 minutes) introduction video

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  • BC Stewart

    Have you considered using KiCad for the training course? It has some powerful featues including differential trace placement and trace length adjustment, just like Altium. But it’s free and runs on any Windows, Mac, or Linux PC.

    • http://www.fedevel.com Robert Feranec

      At this moment I am working on Orcad/Allegro. However, I know, that there are some people doing courses based on KiCad (check out Chris Garmmell’s website Contextual Electronics https://contextualelectronics.com/ ).

      PS: To answer your question. I have considered KiCad for one of my projects, but it doesnt really depends on me. If I use KiCad in the project, then I would make a course using KiCad.