Altera's External Memory Interface Solutions Center

Altera's complete memory interface design solutions address today's high-speed memory interface challenges such as memory controller, I/O design, and board-level signal integrity issues. Altera's solutions include advanced device architectures, customizable MegaCore^® functions, Quartus^® II design software, reference designs, demonstration boards, and simulation models, accompanied by a rich set of technical documentation.

Table 1 lists external memory interfaces supported by Altera FPGAs and HardCopy^® ASICs.

Get more information using our External Memory Interface Spec Estimator.

Device	Memory Type
Table 1. External Memory Interface Support
Device	DDR3 SDRAM	DDR2 SDRAM	DDR SDRAM	RLDRAMII	RLDRAMIII	QDRII SRAM	QDRII+ SRAM
Stratix V (1)	2,132 Mbps 1,066 MHz	800 Mbps 400 MHz	-	1,067 Mbps 533 MHz	1,600 Mbps 800 MHz	1,400 Mbps 350 MHz	2,200 Mbps 550 MHz
Stratix IV	1,066 Mbps 533 MHz	800 Mbps 400 MHz	400 Mbps 200 MHz	1,067 Mbps 533 MHz	-	1,400 Mbps 350 MHz	2,200 Mbps 550 MHz
Stratix III	1,066 Mbps 533 MHz	800 Mbps 400 MHz	400 Mbps 200 MHz	800 Mbps 400 MHz	-	1,400 Mbps 350 MHz	1,600 Mbps 400 MHz
Stratix II and Stratix II GX	-	667 Mbps 333 MHz	400 Mbps 200 MHz	600 Mbps 300 MHz	-	1,200 Mbps 300 MHz	1,200 Mbps 300 MHz
Stratix and Stratix GX	-	-	400 Mbps 200 MHz	400 Mbps 200 MHz	-	800 Mbps 200 MHz	-
Arria V (1)	1,334 Mbps 667 MHz	800 Mbps 400 MHz	-	800 Mbps 400 MHz	-	1,400 Mbps 350 MHz	1,600 Mbps 400 MHz
Arria II GZ	800 Mbps 400 MHz	666 Mbps 333 MHz	-	700 Mbps 350 MHz	-	1,200 Mbps 300 MHz	1,400 Mbps 350 MHz
Arria II GX	800 Mbps 400 MHz	666 Mbps 333 MHz	400 Mbps 200 MHz	-	-	1,000 Mbps 250 MHz	1,000 Mbps 250 MHz
Arria GX	-	466 Mbps 200 MHz	400 Mbps 200 MHz	-	-	-	-
Cyclone V (1)	1,066 Mbps 533 MHz	800 Mbps 400 MHz	-	800 Mbps 400 MHz	-	1,400 Mbps 350 MHz	1,600 Mbps 400 MHz
Cyclone IV	-	400 Mbps 200 MHz	334 Mbps 167 MHz	-	-	668 Mbps 167 MHz	-
Cyclone III LS	-	333 Mbps 167 MHz	300 Mbps 150 MHz	-	-	600 Mbps 150 MHz	-
Cyclone III	-	400 Mbps 200 MHz	334 Mbps 167 MHz	-	-	668 Mbps 167 MHz	-
Cyclone II	-	333 Mbps 167 MHz	333 Mbps 167 MHz	-	-	668 Mbps 167 MHz	-
HardCopy IV	1,067 Mbps 533 MHz	667 Mbps 333 MHz	400 Mbps 200 MHz	800 Mbps 400 MHz	-	1,200 Mbps 300 MHz	1,400 Mbps 350 MHz
HardCopy III	800 Mbps 400 MHz	667 Mbps 333 MHz	400 Mbps 200 MHz	800 Mbps 400 MHz	-	1,200 Mbps 300 MHz	1,400 Mbps 350 MHz
HardCopy II	-	533 Mbps 267 MHz	400 Mbps 200 MHz	500 Mbps 250 MHz	-	1,000 Mbps 250 MHz	1,000 Mbps 250 MHz

Notes

All values are forward looking.

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Altera's External Memory Interface Solutions Center

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