1、本章讲纲本章讲纲TATA接收读申请到读出信息到存储器输出端的时间接收读申请到读出信息到存储器输出端的时间TMTM连续两次启动存储器所需的最小时间间隔连续两次启动存储器所需的最小时间间隔TM TATM TA带宽:带宽:w w为数据总线宽度为数据总线宽度MMTwB RAM静态静态RAM(SRAM)动态动态RAM(DRAM)ROM掩膜型掩膜型ROM可编程可编程ROM(OTP ROM)可擦除可编程可擦除可编程ROM(EPROM)电可擦除可编程电可擦除可编程ROM(E2PROM,FlashROM等等)BoBiVDDQ0Q1LC20061121RAM或ROMDRAM2114D0-D15A0-A10CSWE
2、CSWED0:15A0:9CSWE2114D0:15A0:9CSWE2114D0:15A0:9CSWE2114101016DBABWRC#1#2#3#44 4片片21142114被分为被分为2 2组,组,每组每组1Kx81Kx8;每组的每组的CSCS各接一译各接一译码器输出,而输出码器输出,而输出由由A10-A15A10-A15电平及门电平及门控信号控信号IO/MIO/M决定;决定;各个芯片占用的起各个芯片占用的起始地址由始地址由A10-A15A10-A15决决定,数量由芯片地定,数量由芯片地址引线数目决定;址引线数目决定;A15 A14 A13 A12 A11 A10 A9A8A7A6A5A
3、4A3A2A1A00000H0400H0800HFFFFH#1#2#3#4A15 A14 A13 A12 A11 A10 A9A8A7A6A5A4A3A2A1A00000H1000HFFFFH2000H0000H1000H2000H#1#2#3#4cs1cs020061123A15 A14 A13 A12 A11 A10 A9A8A7A6A5A4A3A2A1A0A15 A14 A13 A12 A11 A10 A9A8A7A6A5A4A3A2A1A00000HFFFFH0000H0400H0800H0C00Hp 经常不断地学习,你就什么都知道。你知道得越多,你就越有力量p Study Constantly,And You Will Know Everything.The More You Know,The More Powerful You Will Be写在最后谢谢你的到来学习并没有结束,希望大家继续努力Learning Is Not Over.I Hope You Will Continue To Work Hard演讲人:XXXXXX 时 间:XX年XX月XX日