Committed to Memory

Archive for the 'DDR4' Category

 

Breaking down another memory wall

People are sometimes surprised when I tell them that more than $40 Billion of DRAM chips are sold every year – but have you ever wondered where they all go?

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Posted in DDR Controller, DDR4, DIMM, IP, Signal Integrity |

 

3D XPoint Technology: More details revealed

There was a huge technology announcement on 3D XPoint(tm) technology about 3 weeks ago – but without many details. I’m at the IDF2015 conference in San Francisco this week and we learned a lot more.

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Posted in DDR Controller, DDR PHY, DDR4, DIMM, DRAM Industry, Uncategorized |

 

Samsung DDR4-3DS 3D Stacked DIMMs using Through Silicon Vias (TSV)

It’s been about 9 months since I blogged on Samsung’s public roadmap and the fact that it carried some 3D Stacked DDR4 Devices using Through Silicon Vias (TSVs). Time for a quick update…

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Posted in DDR4, DIMM, DRAM Industry, Featured, Uncategorized |

 

Do you need DDR4 Write CRC?

A customer asked us, “Do I need DDR4 write CRC beyond a certain frequency?”

The answer is far from simple; it’s dependent on many factors including the type of system it is, the other types of error correction (ECC) that may be in use, the system’s tolerance of errors, and the system’s ability to spare the bandwidth required for the write CRC function. Since I’ve been asked a few times and since the answer is so complex, I created the flowchart here to show some paths through the possible choices.

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Posted in DDR Controller, DDR4, DRAM Industry, Featured, Signal Integrity, Uncategorized |

 

Want to learn about DDR VIP?

Our friends in Synopsys’s Verification Group have been putting together an excellent set of Memory Verification IP (VIP) for DDR4, DDR3, LPDDR4, LPDDR3, that complements our other VIP for Flash, MIPI, PCIe, AMBA, Ethernet, HDMI, SATA, etc…

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Posted in DDR Controller, DDR PHY, DDR3, DDR4, DRAM Industry, HBM, High Bandwidth Memory, HMC, Hybrid Memory Cube, LPDDR3, LPDDR4 |

 

LPDDR4 is here! Samsung Galaxy S6 and LG Gflex 2 released

Samsung made a big event of the launch of the Galaxy S6 today (April 10th, 2015) making the S6 and S6 Edge available at multiple US and international retailers simultaneously. The Galaxy S6 is based around Samsung’s own Exynos 7420 application processor and LPDDR4 DRAM.

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Posted in DDR Controller, DDR PHY, DDR4, DRAM Industry, Low Power, LPDDR4, Uncategorized |

 

Row Hammering: What it is, and how hackers could use it to gain access to your system

I have written on the topic of Row Hammering in a White Paper I published last year (link here) but since it is in the spotlight recently I thought I’d dedicate a blog entry to it. I had never considered this to be a security hole until this morning.

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Posted in DDR3, DDR4, DIMM, DRAM Industry, Signal Integrity, Uncategorized |

 

Zero to Green Light in minutes: Prototype your DDR Designs faster with new DDR IP Prototyping Kit

I’m thrilled to blog about our latest IP prototyping kits that allow much faster FPGA prototyping of your DDR designs. In the last few years I’ve seen our HAPS prototyping boxes at more and more of our customers, and people I’ve talked to really like the ability to do their software prototyping for their DDR IP on their desktops long before their SoCs are manufactured.

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Posted in DDR Controller, DDR PHY, DDR3, DDR4, DIMM, LPDDR3 |

 

Dell rolls out 10 desktop, workstation and server families with DDR4

A good friend of mine alerted me that Dell’s latest product lines featuring DDR4 memory are scheduled to ship as early as next week. A quick summary:

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Posted in DDR4, DIMM, DRAM Industry, Uncategorized |

 

When is “First” Really “First”?

Yesterday was Memcon time again.  Memcon is the event that Denali started as a one-day conference in Silicon Valley that is all about memory.  After Cadence acquired Denali, Cadence now hosts the event.

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Posted in DDR Controller, DDR PHY, DDR4, LPDDR4 |