The EMI 64Mbit MRAM chip is a Spin Transfer Torque Magnetoresistive Random Access Memory(STT-MRAM)composed of two 32Mb dual-stack die,achieving 4bit I O access through a 2×CS 1×CLK configuration
SPI MRAM memory chip is a magnetoresistive random access memory with standard SPI bus as interface It can be written directly without erasing first,supports byte-level updates,and is naturally nonvolatile-data remains after power failure
In applications involving code storage and firmware execution,serial SPI NOR Flash has become the preferred storage solution for MCUs due to its low number of pins,low cost,and support for in-chip execution(XIP)
