Low-power DDR2 (LPDDR2) is becoming a major area of mobile DRAM technology, is expected to account for the second quarter of this year, 40% share, higher than 31% in the first quarter. Most mobile DRAM market is still the older LPDDR1 by the technical control, but time will not be too long.
The fourth quarter of this year, the situation will change, when LLPDDR2 advantage for the first time, control 58% of the market, as shown below.
Mobile DRAM DRAM market was a backwater, but now Samsung, Hynix, Elpida, Micron and other important companies are to invest more in this area of engineering and development efforts. Unlike standard DRAM, Mobile DRAM low power consumption, less heat and take up less space, particularly suitable for smart phones and other small electronic products. These products require more computing power and smaller footprint. Mobile DRAM is also used in digital cameras, portable media players, portable games and tablet PCs.
Mobile DRAM is facing a major challenge is the performance can meet the requirements of future products. Although LPDDR2 now is for cell phones and tablet PCs have been sufficient, but power consumption and broadband issues remains a concern.
For example, when the working voltage is 1.2V, LPDDR2 data can each save about 50% than LPDDR1 power. However, if future data transmission equipment is currently 10 times the amount - will soon reach such a level, you simply can not meet the requirements will LPDDR2.
LPDDR2 per second transmission speed of 8.5GB, and LPDDR1 only 1066MHz, this is also very prominent. However, this rate may not be sufficient LPDDR2 to meet the upcoming products. Feedback from smart phone makers need data rates up to second 12.8GB, which will require LPDDR2 the clock frequency up to 800MHz, while the IHS company that seems quite feasible.
What next?
As LPDDR2 may reach performance limits, and soon unable to meet higher requirements, several mobile DRAM technology is fighting for attention, trying to replace it, as shown below.
Currently at the forefront include: Rambus's mobile XDR; SPMT Alliance developed the serial port memory technology, royalty-free ready to act as a memory interface.
Other mobile DRAM technology, including Wide I / O, claims connected to the silicon level, DRAM core, but not necessarily mobile technology; LPDDR3, its parameters are still undetermined; DDR4, a standard DRAM, 2013 may not be available. cheap cell phones
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Unlike accepted DRAM, Mobile DRAM low ability consumption, beneath electronic and yield up beneath space, decidedly acceptable for acute phones and added baby electronic products.
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