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Altera_Forum
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10 years ago

What is the max ddr2 clock frequency support by cycloneiv?

For EP4CE30F23C6N device, what is its max clock to drive external ddr2? I just find one statement on handbook "support to DDR2 SDRAM interface up to 200Mhz" Where I can find the detail specific...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Altera's DDR2 SDRAM interface IP doesn't support operation above 200MHz in -6 speed grade (fastest) Cyclone IV parts. This will be the limit if you wish to use Altera's IP.

Cheers,

Alex