Designers can save board space, cost and reduce power consumption by following DDR3 guidelines without VTT termination. This reference design shows how to do that with AM437x. This type of design is not for everyone as there are certain restrictions. Having short trace lengths, a maximum of two DDR3 parts and a balanced T-topology are must-have requirements; otherwise VTT termination guidelines should be followed.
Features
System optimized DDR3/DDR3L design on Sitara AM437x processor with integrated DDR controller
Optimized layout requires no VTT termination
Two 4-Gbit DDR3 / DDR3L memories
Up to 400 MHz clock (DDR-800 data rate)
Complete sub-system reference with schematics, BOM, design files and HW User's Guide implemented on a fully assembled board developed for testing and validation.
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Both PCB footprints and schematic symbols are available for download in a vendor neutral format, which can then be exported to the leading EDA CAD/CAE design tools using the Ultra Librarian Reader. The reader is available as a (free download.).
The UL Reader is a subset of the Ultra Librarian toolset that can generate, import, and export components and their attributes in virtually any EDA CAD/CAE format.
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