Arria® V Device Handbook: Volume 1: Device Interfaces and Integration
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7. External Memory Interfaces in Arria V Devices
The Arria® 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.
Memory Standard | Hard Memory Controller | Soft Memory Controller | |
---|---|---|---|
Arria V GX, GT, SX, and ST | Arria V GX, GT, SX, and ST | Arria V GZ | |
DDR3 SDRAM | Full rate | Half rate and quarter rate | Half rate and quarter rate |
DDR2 SDRAM | Full rate | Half rate | Full rate and half rate |
LPDDR2 SDRAM | — | Half rate | — |
RLDRAM 3 | — | — | Half rate and quarter rate |
RLDRAM II | — | Half rate | Full rate and half rate |
QDR II+ SRAM | — | Half rate | Full rate and half rate |
QDR II SRAM | — | Half rate | Full rate and half rate |