An embedded multimedia card provides ultra-fast memory for next-gen smartphones, tablets, and other mobile devices. With a capacity of 64 GB, the Samsung eMMC Pro Class 1500 reads data sequentially at up to 140 MB/s and writes at up to 50 MB/s. The device can process up to 3500/1500 IOPS for random reading and writing—four times the speed of previous eMMCs.
The card uses Samsung’s 64-Gb NAND with a toggle DDR 2.0 interface based on the company's latest 20-nm-class process technology. The eMMC's fully managed NAND memory comes with its own high-performance controller and intelligent flash management firmware. The devices are available in two-, four-, and eight-die stacks with the largest capacity of 64 GB measuring 1.2-mm thick. The unit supports the latest JEDEC e-MMC v4.5 specification.
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.