You have to contact Renesas for pricing and availability, I believe. The product was supposed to start sampling in July 2013 but the product selector on the Renesas website shows it as still in development.
I believe one of the primary reasons for moving display buffers to external DRAM has almost always been cost. More performant solutions might use fast onboard RAM (similar to cache on a modern CPU core).
So this might be an interesting presentation - since the proposition is increasing perf and lowering cost (relative to a modern DRAM based solution). And of course DDR perf is increasing (e.g. - DDR4) - so it's also a moving target.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.