存储器的类型将决定整个嵌入式系统的操作和性能,因此存储器的选择是一个非常重要的决策。无论系统是采用电池供电还是由市电供电,应用需求将决定存储器的类型(易失性或非易失性)以及使用目的(存储代码、数据或者两者兼有)。另外,在选择过程中,存储器的尺寸和成本也是需要考虑的重要因素。 Density Org. Part Number Pkg. Voltage Temp 4Mb 512Kx8 MR2A08AMA35R 48-BGA 3.3v Commercial FEATURES · Fast 35ns Read/Write Cycle · SRAM Compatible Timing, Uses Existing SRAM Controllers Without Redesign · Unlimited Read & Write Endurance · Data Always Non-volatile for >20 years at Temperature · One Memory Replaces Flash, SRAM, EEPROM and BBSRAM in System for Simpler, More Efficient Design · Replace battery-backed SRAM solutions with MRAM to eliminate battery assembly, improving reliability · 3.3 Volt Power Supply · Automatic Data Protection on Power Loss · Commercial, Industrial, Automotive Temperatures · RoHS-Compliant SRAM TSOP2 Package · RoHS-Compliant SRAM BGA Package · AEC-Q100 Grade 1 Qualified