Elpida Memory, the third largest dynamic random access memory (DRAM) manufacturer in the world, has announced that it had developed 4Gb LPDDR3 (DDR3 Mobile RAM) device. The new type of memory will power the next-generation of high-end ultra-portable devices like smartphones and tablet PCs.
Elpida's 4Gb LPDDR3 memory chip features 1600MHz effective clock-speed and operates at 1.2V voltage. The chip is made using 30nm-class process technology. Based on a per pin speed of 1600Mbps, a single LPDDR3 device has a data transfer rate of 6.4GB/s or 12.8GB/s in high-end mobile devices using a two-chip configuration. When compared with LPDDR2 on a same-speed basis, LPDDR3 consumes roughly 25% less power, enabling it to extend the operating time of such mobile devices as smartphones and tablet PCs.
Elpida indicated that it is looking forward stacking several 4Gb LPDDR3 dies together to enable higher density of memory devices. Such devices will comply to Wide IO standard and will deliver both higher performance and higher density than conventional memory chips.
Sample shipments of the new LPDDR3 will begin toward the end of 2011. Depending on customer demand, volume production is expected to start in late 2012. Also, two- and four-layer stacking configurations will enable high-density 8Gb and 16Gb chips to be added the line-up of LPDDR3 products.