【应用笔记】Cyclone器件和DDR SDRAM的接口(Interfacing DDR SDRAM with Cyclone Devices)
许多应用使用单数据速率(single data rate,SDR))存储器。然而,正如这些应用变得更加苛求,设计者需要找出提升新性能而不增加成本的方法。
Many applications use single data rate (SDR) memory. However, as these
applications become more demanding, designers need to find ways to
improve performance without increasing cost. Over the years, DRAM
companies introduced memory types with improved architecture such as
fast page mode (FPM), extended data out (EDO), and SDRAM to address
this issue. Double data rate (DDR) memory is the most popular memory
interface among these memory architectures because of its ability to
increase data bandwidth without increasing system complexity and cost.
DDR memory uses both edges of a clock to transmit data, which allows
data transmission at twice the rate of a SDR memory device at the same
clock speed and with the same number of I/O pins required to transmit
data. DDR memory is used in many applications where fast data
transmission is needed, such as memory access and first-in first-out
(FIFO) memory structures. Table 1 shows the Cyclone device support for
DDR SDRAM.an348.pdf
共3条
1/1 1 跳转至页
【应用笔记】Cyclone器件和DDR SDRAM的接口(Interfacing DDR SDRAM with Cyclone Devices)

共3条
1/1 1 跳转至页
回复
有奖活动 | |
---|---|
【EEPW电子工程师创研计划】技术变现通道已开启~ | |
发原创文章 【每月瓜分千元赏金 凭实力攒钱买好礼~】 | |
【EEPW在线】E起听工程师的声音! | |
“我踩过的那些坑”主题活动——第001期 | |
高校联络员开始招募啦!有惊喜!! | |
【工程师专属福利】每天30秒,积分轻松拿!EEPW宠粉打卡计划启动! | |
送您一块开发板,2025年“我要开发板活动”又开始了! | |
打赏了!打赏了!打赏了! |
打赏帖 | |
---|---|
【我踩过的那些坑】STM32的硬件通讯调试过程的“坑”被打赏50分 | |
【我踩过的那些坑】晶振使用的问题被打赏100分 | |
【我踩过的那些坑】电感选型错误导致的处理器连接不上被打赏50分 | |
【我踩过的那些坑】工作那些年踩过的记忆深刻的坑被打赏10分 | |
【我踩过的那些坑】DRC使用位置错误导致的问题被打赏100分 | |
我踩过的那些坑之混合OTL功放与落地音箱被打赏50分 | |
汽车电子中巡航控制系统的使用被打赏10分 | |
【我踩过的那些坑】工作那些年踩过的记忆深刻的坑被打赏100分 | |
分享汽车电子中巡航控制系统知识被打赏10分 | |
分享安全气囊系统的检修注意事项被打赏10分 |