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                            1. 企业空间 采购商城
                              宏源棋牌 > 存储百科 > 存储技术 > 正文

                              SRAM存储器原理介绍

                              2014-02-07 14:20来源:中国存储网
                              导读:SRAM(Static Random Access Memory),即静态随机存取存储器,SRAM主要应用于需要缓存比较小或对功耗有要求的系统。

                              SRAM(Static Random Access Memory),JIJINGTAISUIJICUNQUCUNCHUQI。TASHIYIZHONGJUYOUJINGZHICUNQUGONGNENGDENEICUN,BUXUYAOSHUAXINDIANLUJINENGBAOCUNTANEIBUCUNCHUDESHUJU。 

                              SRAM主要应用于需要缓存比较小或对功耗有要求的系统。例如,很多8 BIT MCU,由于能支持的RAM比较小,内部缓存又不够;或者16 BIT MCU,支持的RAM比较大,但对功耗有要求而无法用DRAM的系统。
                              SRAM与DRAM的区别

                               

                              SRAM

                              DRAM

                              结构

                                   6个晶体管为1个存储单元(GIGADEVICE2晶体管,但STANDBY电流大),

                              1个晶体管为1个存储单元,但需要刷新。

                               

                              工作状态下

                              10Ma-30mA

                              100mA以上  

                              Standby(待机)

                              1uA-20uA  

                              10mA以上

                              存取速度  

                              快的一般为101215nS左右,慢的一般为55nS70nS  

                              快,一般小于10nS

                              容量  

                              目前最大到16M BIT  

                              单片能到 512M BIT  

                                SRAM的应用领域

                              应用领域

                              通信、仪器仪表等

                              字典机、POS、打印机、游戏机、工控、仪器仪表等

                              10mA以上

                              容量(BIT)

                              256K1M2M4M

                              256K1M2M4M8M16M

                              快,一般小于10nS

                              容量  

                              目前最大到16M BIT  

                              单片能到 512M BIT  

                               相关推荐:

                              宏源棋牌DRAMCUNCHUQIYUANLIJIESHAO

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