A low-power DDR3 memory buffer for LRDIMM applications increases memory capacity at higher speeds. The MB3518 buffer from Integrated Device Technology, Inc. (IDT) runs at 1.5 V or 1.35 V and operates at speeds up to 1866 megatransfers per second (MT/s) with two LRDIMMs in a channel.
The device offers 512 GB density, assuming quad-rank LRDIMMs at 32 GB. The capacity can be doubled to more than 1 TB using eight-rank 64 GB LRDIMMs, expected to launch in 2013. Additionally, the memory buffer features proprietary debug and validation features, including per-pin, on-die oscilloscope capability and built-in logic analyzer capture to expedite the development, validation, and test of fully buffered DIMM topologies.
Supports DDR3-800, 1066, 1333, 1600, and DDR3-1866
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.