JEDEC Solid State Technology Association today released a new standard for Wide I/O mobile DRAM: JESD229 Wide I/O Single Data Rate (SDR).
Wide I/O mobile DRAM is a breakthrough technology that will meet industry demands for increased levels of integration as well as improved bandwidth, latency, power, weight and form factor; providing performance, energy efficiency and small size for smartphones, tablets, handheld gaming consoles and other mobile devices.
Wide I/O mobile DRAM enables chip-level three dimensional (3D) stacking with Through Silicon Via (TSV) interconnects and memory chips directly stacked upon a System on a Chip (SoC). The standard defines features, functionalities, AC and DC characteristics, and ball/signal assignments. It is well-suited for applications requiring extreme power efficiency and increased memory bandwidth (up to 17GBps). Examples include 3D Gaming, HD Video (1080p H264 video, pico projectors), and running multiple applications simultaneously. Wide I/O offers twice the bandwidth of the previous generation standard, LPDDR2, at the same rate of power consumption.