Elpida Memory has developed an advanced 30nm process 4Gb DDR3 mobile RAM (LPDDR3), according to the company. The new chip can achieve a high-speed data transfer rate of 1600Mbps at low operating voltage of 1.2V.
The new LPDDR3, along with Elpida's recently-announced high-performance low-power consumption Wide IO mobile RAM, enables Elpida to support the development of next-generation mobile devices, the company said. LPDDR3 achieves a data transfer rate that is twice as fast as DDR2 mobile RAM (LPDDR2), the current leading DRAM preference for mobile devices.
Based on a per pin speed of 1600Mbps, a single LPDDR3 device has a data transfer rate of 6.4 gigabytes per second (GB/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.
Sample shipments of the new LPDDR3 will begin toward the end of 2011, Elpida said. 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.