EDN

Implementing custom DDR and DDR2 SDRAM external memory interfaces in FPGAs (part 2)

Note: This is the second part of a two-part article covers the remaining steps to implement DDR or DDR2 external memory interfaces (EMIFs) using FPGAs via ALTDLL and ALTDQ_DQS megafunctions. Steps 4 ” ...
Computerwoche Online

Test: DDR-SDRAM schlägt Rambus

Der VIA Apollo Pro266 für DDR-SDRAM ist fertig. tecChannel.de hat ein erstes Mainboard mit dem neuen Chipsatz für den Pentium III und Celeron getestet. Die Ergebnisse übertreffen die Erwartungen. Die ...
Electronic Design

DDR FCRAM Boosts Performance In DDR SDRAM Designs

A modified form of synchronous DRAM technology, double-data-rate, fast-cycle random access memory (DDR FCRAM) is primarily focused at the networking market segment. Yet due to its high performance, it ...
heise online

Hintergrund: Warten auf DDR-SDRAM

Seit Monaten erscheinen immer neue Produktankündigungen im Zusammenhang mit dem neuen Double-Data-Rate-SDRAM-Speicherstandard. Doch noch können Endkunden kaum etwas kaufen. Fragt man nach konkreten ...
Design-Reuse

DDR SDRAM Controller IP Designed for Reuse

This paper deals with reusability issues in the development of a double data rate (DDR) SDRAM controller module for FPGA-based systems. The development of integrated systems-on-a-chip (SoC) is based ...
TechRepublic

Implementation of DDR SDRAM Controller Using Verilog HDL

Now-a-days, DDR SDRAM (Double Data Rate Synchronous Dynamic Random Access Memory) has become the most popular class of memory used in computers due to its high speed, burst access and pipeline feature ...
Design-Reuse

The Love/Hate Relationship with DDR SDRAM Controllers

Almost everyone knows that the bulk of DRAMs produced end up in desktop and laptop computers just like the one used to write this article. In fact, approximately 90% of all DRAMs produced are used in ...
Eurogamer

AMD Athlon using DDR SDRAM review

We've spoken quite a lot about DDR memory in the last few months, but this is the first opportunity we've had to test the new technology for ourselves. With the falling prices of Athlons and memory, ...
EDN

Double Data Rate (DDR) SDRAM

Through onlinecomponents.com, Micron Technology feature their DDR SDRAM. The device uses adouble data ratearchitecture to achieve high-speed operation. Moreover, the device’s double data rate ...
Semiconductor Engineering

The Importance Of Using The Right DDR SDRAM Memory

Selecting the right memory technology is often the most critical decision for achieving the optimal system performance. Designers continue to add more cores and functionality to their SoCs; however, ...
Electronic Design

The Vanishing Data Valid Window

There are many parameters, both electrical and physical, that contribute to the relative size of tDV and not all scale with operating speed. Factors such as signal noise, crosstalk, skew, jitter, and ...
ComputerBase

DDR bis DDR5: Fünf Generationen RAM im direkten Vergleich

Damals wie heute zählt für die Einstufung der Geschwindigkeit von RAM mehr als der effektive Speichertakt und insbesondere für Spieler ist die Speicherlatenz nicht selten äußerst relevant.