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LPDRAM FAQs

LPDRAM(11)
Are Micron's LPDRAM products green/RoHS compliant?
Yes. Micron’s green engineering program is RoHS-compliant and conforms with most of the world’s emerging environmental standards, including those in Asia and Europe.
Are your LPDRAM parts JEDEC-compliant?
We design our parts to meet or exceed the JEDEC specification. As standards change, we will make the necessary changes to ensure our parts meet new specifications. Any changes made will be noted in a product change notice (PCN) and sent to our customers.
Does Micron's LPDRAM cost more than standard DRAM?
It depends. Density plays a major role in price comparisons between LPDRAM and standard SDR/DDR. Also, since LPDRAM is offered in standard configurations of x16, x32 and x64, you may be able to reduce your overall BOM cost if your application currently uses two x16 components to support a x32 bus. You could use one x32 LPDRAM instead of two x16 standard DRAM. Contact your local rep for cost information.
How does LPDDR3 differ from DDR3L-RS?

LPDDR3 is optimized for battery life and portability. DDR3L-RS is a low IDD6 version of the DDR3L die and offers a balance in price versus performance, along with improved standby power.

How does LPDDR3 differ from LPDDR2?

LPDDR3 increases performance to 1600 Mb/s (versus 1066 Mb/s for LPDDR2). Additional changes include write leveling, C/A (command/address) training, and a lower I/O capacitance limit to improve timing.

How does LPDDR4 differ from LPDDR3?

LPDDR4 increases data rate to 3200Mbps ~ 4266Mbps/pin, using LVSTL(Low Voltage Swing Terminated Logic).  Die organization has changed from x32 1ch (LPDDR3) to x16/x8 2ch, and added x16/x8 1ch. There are other new features on LPDDR4 for higher speed, lower power consumption.

The part I was using is obsolete and the replacement is a faster speed grade. Can I run the LPDRAM parts at a lower speed?
Yes. A LPDRAM part can be run at any speed equal to or slower than its rated speed grade.
What is LPDRAM?
Optimized for products where power consumption is a concern, our low-power LPDRAM devices combine leading-edge technologies and packaging options to meet space requirements and extend battery life. LPDRAM is available with DDR/SDR interface.
What is the life expectancy of Micron's LPDRAM products?
We're excited about this fast-growing market. We plan to manufacture LPDRAM for many years to come and plan to continue to shrink our designs to achieve higher densities.
What makes Micron's LPDRAM unique?
We offer a comprehensive LPDRAM product portfolio, with a wide range of densities and package options (including JEDEC-standard VFBGA, Known Good Die, and package-on-package). With nearly a decade of LPDRAM experience, our worldwide technical support team can provide the expertise and assistance you need to get your designs to market faster.
What’s the difference between Mobile DRAM and LPDRAM?
There is no difference; Mobile DRAM and LPDRAM are the same product. We opted to add the "LP" prefix to our Mobile DRAM product line to align with the common terminology used throughout the industry and to ensure our customers know at a glance that our Mobile DRAM is a low-power memory device. In addition to the family name change, Mobile DDR SDRAM and Mobile SDR SDRAM are now called Mobile LPDDR and Mobile LPSDR, respectively. Our Web site has been wholly converted to the LPDRAM naming convention, but because we’re updating our PDFs as they come up for review you may see a few older technical documents that still use the old Mobile DRAM terminology.