Specifications
6
External Memory Interfaces in Cyclone V Devices
2013.05.06
CV-52006
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The Cyclone V devices provide an efficient architecture that allows you to fit wide external memory interfaces
to support a high level of system bandwidth within the small modular I/O bank structure. The I/Os are
designed to provide high-performance support for existing and emerging external memory standards.
Table 6-1: Supported External Memory Standards in Cyclone V Devices
Soft Memory ControllerHard Memory ControllerMemory Standard
Half rateFull rateDDR3 SDRAM
Half rateFull rateDDR2 SDRAM
Half rateFull rateLPDDR2 SDRAM
Related Information
• External Memory Interface Spec Estimator
To estimate the external memory system performance specification, use Altera's External Memory
Interface Spec Estimator tool.
• External Memory Interface Handbook
Provides more information about the memory types supported, board design guidelines, timing analysis,
simulation, and debugging information.
• Cyclone V Device Handbook: Known Issues
Lists the planned updates to the Cyclone V Device Handbook chapters.
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