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 ” ...
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 ...
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, ...
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 ...
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 ...
GIZBOT

DDR2 Vs DDR3 Vs DDR4 Vs DDR5 RAM: How are they different

Double data rate synchronous dynamic random-access memory or DDR SDRAM, if you want to keep it simple is a type of memory integrated circuits that are being used in computers nowadays. RAM or ...
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 ...
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 ...
Ars Technica

PC3200 vs DDR400 - what's this mean?

I've posted around this sort of thing before, but haven't really been able to get a decent response, so I'm trying again.<BR><BR>Can someone explain to me the following:<BR>1) How are the designations ...
Electronic Design

DDR Memories Require Efficient Power Management

Now gaining popularity in desktop and portable computers is a new type of memory: Double Data Rate (DDR) memory that meets JEDEC Standard JESD79 and JESD8-9 [1]. The DDR-SDRAM is simple, clocked at ...
Electronic Specifier

The evolution of memories and microprocessors

Electronics has grown and developed rapidly since its early days. Nowhere is this more visible than in memory and ...