Hi all, Is it possible to embed 10 or 100 or 1,000 GBytes of RAM inside an ASIC design today? In general, what would be the maximum I could fit, if cost is not a limitation? Why? Our need would be for a large number, but could be split into many independent banks if that makes things easier. For example, 1,000 independent banks of 100 MBytes each. Or another possible partition (again, if it makes things easier) could be a single huge memory with "normal-size" address bus, say of 20 bits, with a huge data bus of 800,000 bits. ...Or a mixture of the idea above with the idea of the independent banks. Thanks so much for your help. - Juan

Hi Juan, Not with your *likely* budget! :> I suspect any fab even thinking about considering your request would push heavily for a hybrid. Cost is *always* a limitation. And, cost is *always* a limitation. Furthermore, cost is *always* a limitation. You might try researching the available cores on the market currently. And, pricing an equivalent amount of COTS memory (with "whatever" other specifications you haven't mentioned). Then, ask yourself if you plan on buying in the same sorts of quantities that this COTS memory is currently produced/sold. If *not*, consider how willing a fab will be to tie up their resources for the quantities *you* want -- as an "exclusive" customer. Is there some OVERWHELMING REASON why you couldn't locate the store *outside* the ASIC and take advantage of *commodity* memory to give you that capacity? E.g., even if it means you have to think a bit harder on your problem and implement some caching internal/external to the ASIC? ("Think smarter")

What's the maximum RAM size that can be embedded in an ASIC today?

Aug 23, 2013 21 Replies

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Paul Rubin 12 years ago

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seems to have SOIC in small quantities. They do multi-project wafers for small-run prototypes, way too expensive to actually put in most products. Maybe there is something in between.

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Paul 12 years ago

MOQ not shown, but is getting harder.

Paul Carpenter | paul@pcserviceselectronics.co.uk PC Services Raspberry Pi Add-ons Timing Diagram Font GNU H8 - compiler & Renesas H8/H8S/H8 Tiny For those web sites you hate

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