Overview

Featured Videos

Your Innovation, Our Memory

Your Innovation, Our Memory

Emerging technologies require innovation on a whole new scale. See how we partner closely with our customers to gain unique insights about how we can optimize our memory solutions to enable your innovations—and help you change the world.

View video
Memory for Automotive

Memory for Automotive

Technology is reshaping the concept of driving. Automakers are developing countless new driver-assistance features and systems. See how Micron’s memory solutions are helping to enable these new supercomputing capabilities.

View video

About Micron

Where there's memory, there's Micron

Engineered for Innovation

For more than 30 years Micron has redefined innovation by designing, developing, and manufacturing some of the world’s most advanced technologies.

Learn more
Elpida is Now Micron

Elpida Is Now Micron

With the combined strength of our products, technology, and team members—our customers now have access to the broadest portfolio of best-in-class technology.

About the acquisition

Welcome to My Workspace!

Create an account to access these benefits:

  • Save part pages
  • Save Data Sheets and other files
  • Create folders to organize your projects
  • Share folders with colleagues
  • Organize secure documents for easy access
  • "Follow" parts to see alerts and updates

Learn more about Workspace features

Don't have an account yet? Sign up

Already have an account?   Login

My Folders

Your workspace is your area to organize and save part pages, data sheets, and links for easy access in the future. You can even start by saving some of the pages you've recently accessed below:

DDR3 to DDR4 Standard Page Save
My Workspace

DDR4 – Advantages of Migrating from DDR3

DDR4 is the next evolution in DRAM, bringing even higher performance and more robust control features while improving energy economy for enterprise, micro-server, tablet, and ultrathin client applications. The following table compares some of the key feature differences between DDR3 and DDR4.

Feature/Option DDR3 DDR4 DDR4 Advantage
Voltage (core and I/O) 1.5V 1.2V Reduces memory power demand
VREF inputs 2 – DQs and CMD/ADDR 1 – CMD/ADDR VREFDQ now internal
Low voltage standard Yes
(DDR3L at 1.35V)
Anticipated
(likely 1.05V)
Memory power reductions
Data rate (Mb/s) 800, 1066, 1333, 1600, 1866, 2133 1600, 1866, 2133, 2400, 2667, 3200 Migration to higher‐speed I/O
Densities 512Mb–8Gb 2Gb–16Gb Better enablement for large-capacity memory subsystems
Internal banks 8 16 More banks
Bank groups (BG) 0 4 Faster burst accesses
tCK – DLL enabled 300 MHz to 800 MHz 667 MHz to 1.6 GHz Higher data rates
tCK – DLL disabled 10 MHz to 125 MHz (optional) Undefined to 125 MHz DLL-off now fully supported
Read latency AL + CL AL + CL Expanded values
Write latency AL + CWL AL + CWL Expanded values
DQ driver (ALT) 40Ω 48Ω Optimized for PtP (point-to-point) applications
DQ bus SSTL15 POD12 Mitigate I/O noise and power
RTT values (in Ω) 120, 60, 40, 30, 20 240, 120, 80, 60, 48, 40, 34 Support higher data rates
RTT not allowed READ bursts Disables during READ bursts Ease-of-use
ODT modes Nominal, dynamic Nominal, dynamic, park Additional control mode; supports OTF value change
ODT control ODT signaling required ODT signaling not required Ease of ODT control, allows non-ODT routing on PtP applications
Multipurpose register (MPR) Four registers – 1 defined, 3 RFU Four registers – 3 defined, 1 RFU Provides additional specialty readout