电子工程专辑

一文读懂DDR内存基础知识｜值得收藏

无论对于芯片设计商还是器件制造商来说，DDR内存可谓是无处不在——除了在服务器、工作站和台式机中之外，还会内置在消费类电子产品、汽车和其他系统设计中。每一代新的 DDR（双倍数据速率）SDRAM（同步动态随机内存）标准都会在许多方面带来显著改进 ...
电子工程专辑

基于 ANSYS 的 DDR4 SDRAM 信号完整性仿真方法研究

半导体技术快速发展，双倍数据速率同步动态随机存取存储器（Double Data Rata Synchronous Dynamic Random Access Memory, DDR SDRAM）的信号完整性问题已成为设计难点。文中提出了一种基于 ANSYS 软件和 IBIS 5.0 模型的 DDR4 SDRAM 信号完整性仿真方法。利用 IBIS 5.0 模型中增加的 ...
中关村在线

超伟聊吧 揭秘GDDR4显卡三大致命缺陷

走过了SDRAM显存时代，下面我们将进入一个显存速度和带宽飞速发展的DDR时代，下面我们先来了解一下DDR的含义。 ☆ 名词解释 DDR SDRAM：DDR是Double Data Rate的缩写，它是SDRAM内存的进化版本。在设计和操作上与SDRAM很相似，唯一不同的是DDR SDRAM在时钟周期的上升沿和 ...
中关村在线

高手进阶！终极内存技术指南

差分时钟（参见上文“DDRSDRAM读操作时序图”）是DDR的一个必要设计，但CK#的作用，并不能理解为第二个触发时钟（你可以在讲述DDR原理时简单地这么比喻），而是起到触发时钟校准的作用。由于数据是在CK的上下沿触发，造成传输周期缩短了一半，因此必须要 ...
EDN

1 GB High Speed CMOS DDR SDRAM

Alliance Memory introduced its new 1 Gb high-speed CMOS DDR SDRAM in 128 x 8 configuration in the 66-pin TSOP II package. It is offered in an industrial temperature range from -40°C to +85°C and ...
Design-Reuse

LSI Logic DDR interface core delivers up to 400Mb/s for high-speed DDR SDRAM applications

Pre-designed interface core now available to simplify ASIC interfaces to DDR SDRAM Ideal for storage, computing, printer, and communications applications MILPITAS, Calif., October 8, 2002 – LSI ...
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 ...
Business Insider

Alliance Memory Introduces New 1Gb High-Speed CMOS DDR SDRAM in 128M x 8 Configuration

SAN CARLOS, Calif., April 26, 2017 (GLOBE NEWSWIRE) -- Alliance Memory today introduced a new 1Gb high-speed CMOS double data rate synchronous DRAM (DDR SDRAM) in the 66-pin TSOP II package. Offered ...
Design-Reuse

Xilinx Announces Industry's First Complete DDR400 SDRAM Interface Solution For FPGAs

SAN JOSE, Calif., April 24, 2003 - Xilinx, Inc., (NASDAQ:XLNX), today announced a complete suite of solutions to help advanced system designers to quickly implement FPGA-based interfaces to the latest ...
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 ...