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同步动态随机存取内存

SDRAM为在与CPU相同的时钟速度下处理数据而设计。目前，它广大使用于各种电子产品，如汽车，工业，网络设备，数字电视，数码相机和机顶盒。

Part No.	Voltage	Speed	Organization	Datasheet
W9816G6JH	3.3V±0.3V	133/166/200 MHz	1Mbit x16
W9864G6KH	3.3V±0.3V	133/166/200 MHz	4Mbit x16
W9812G6KH	3.3V±0.3V	133/166/200 MHz	8Mbit x16
W9825G6KH	3.3V±0.3V	133/166/200 MHz	16Mbit x16

提到内存，相信大家都不陌生，几乎所有的计算机系统中都有它的身影，按照内存的工作原理划分，可将内存分为 RAM 和 ROM 两大类。 RAM（Random Access Memory）存储器又称随机存取器，存储的内容可通过指令随机读写访问，RAM 中的数据在掉电时会丢失； ROM（Read Only Memory）存储器又称只读存储器，只能从中读取信息而不能任意写信息。ROM 具有掉电后数据可保持不变的优点。 RAM 和 ROM 两大类下面又可分很多小类，如下图所示：

QspiNAND Flash

ZHUANGONGDAIMACHUCUNDE QspiNAND Flash

HUABANGTIGONGLEYIXILIEXIANGRONGYUSPI NORJIEKOUDEQspiNANDCHANPIN，LAIRANGSHIYONGZHEBUXUYAOZAIDARONGLIANGJIYITIXUANZESHANG，JIXUSHAFEIKUXIN、JIAOJINNAOZHI。GUOWANG，NOR FlashZAIDIRONGLIANGCHANPINJUYOUXIANGDANGHAODECHENGBENYOUSHI，DANNAND FlashZAIDARONGLIANGCHANPINSHANGQUESHIYIZHONGGENGYOUCHENGBENJINGZHENGLIYOUSHIDECHANPIN。

Part No.	Voltage	Speed	Temp.	Datasheet
W25N512GV	2.3V - 3.6V	104MHz	-40℃ ~ 85℃
W25N01GV	2.3V - 3.6V	104MHz	-40℃ ~ 85℃
W25M02GV	2.3V - 3.6V	104MHz	-40℃ ~ 85℃
W25N04KV	2.3V - 3.6V	104MHz	-40℃ ~ 85℃

华邦QspiNAND的优势

內建ECC

CHUANTONGDENANDXUYAOEWAIDEKONGZHIQILAIGUANLI、ZHENCEBINGJIUCUOYIXIENANDZAICAOZUOGUOCHENGZHONGHUIYUDAODEWENTI，LIRUHUAIKUAIGUANLI、ECCXIAOZHENGDENG。DANHUABANGDEQspiNANDXILIECHANPINNEIJIANLEECC(Error Correcting Code CUOWUJIUCUOMA)DEGONGNENG，ERQIEYENENGTIGONGLELIANXUHAO”KUAI”(block)DEQspiNAND，ZHEIXIEDOUNENGRANGSHIYONGZHEBINGBUXUYAOEWAIDEKONGZHIQI，JIUNENGQINGYIDEXIANGSHOUZHEIXIEGONGNENGDAILAIDEFANGBIANXINGYUSHIYONGXING。

Continuous Read

ZAICHANGJIANDEXITONGQIDONGGUOCHENGZHONG，DAIMASHIBEICUNFANGZAISHANCUNNEI，RANHOUZAIKAIJIDESHIHOU，HUIJIANGZHEIXIEZAIQIDONGSHISUOXUYAODEDAIMADUCHU，YIBIANCPUNENGZAIDRAMZHONGYIJIAOGAOSUDEFANGSHIZUOYUNXING。ZHEIGEGUOCHENGJIUSHIYIBANSUOSHUZHIDEDAIMAYINGSHE。XITONGSHEJISHIZHUIQIUDEMUBIAOZHIYI，JIUSHINENGGOUGENGKUAISUDEJIANGSHANCUNZHONGDEDAIMADUJINDRAMZHONG。ERHUABANGDUYOUDE”Continuous Read”GONGNENGJIUSHIYIZHONGZHUANMENWEILENENGGOURANGNANDLIMIANDEDAIMAYONGGENGKUAISUDEFANGSHIDUQUCHULAIDEGONGNENGZHIYI。