Committed to Memory

Archive for the 'Featured' Category

 

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 |

 

When is LPDDR3 not LPDDR3? When it’s DDR3L…

For years, I have been predicting that Low-Power DDR (LPDDR) devices would make the crossover from mobile devices into laptops.

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Posted in DDR3, DRAM Industry, Featured, Low Power, LPDDR3 |