| MRAM memory is a new type of memory based on spintronic devices.The magnetic moment in the magnetized film can be converted by applying a voltage,and the data can be saved by macroscopically showing two different resonance resistance states of high resistance and low resistance."1" and "0".The advantage of MRAM is that it is a plugin memory,and the data can still be retained after power failure.At the same time,the read and write working time of magnetic storage is very short,which can reach the data access speed cached in the CPU.The storage density performance of MRAM is also very good,because the device size is small,it can reach the storage density of Flash,these characteristics help to make MRAM a new mainstream memory.technology.Common low-power design methods for integrated circuits mainly include multi-threshold voltage technology,multi-power supply voltage technology,gated clock technology,gated power supply technology,etc.These methods basically reduce the chip’s operating voltage,operating frequency,or reduce leakage current.To reduce the overall performance of the chip.The design is based on the 28 nm process technology,which completes the process from synthesis to physical verification of the controller module and interface circuit in the chip.First,it starts with the research background and research significance of magnetic storage,analyzes its application scenarios and working principles,and then further extends to its research status at home and abroad.And the function of each main module,and introduced in detail the process of DC synthesis to generate netlist.The chip physical design part describes in detail the completion process of each stage,and analyzes and optimizes the design results.The subsequent low-power design part introduces some commonly used low-power design methods for chips and combines this project to focus on two low-power technologies,namely improved multi-threshold voltage technology and gated clock technology.The threshold voltage technology is improved on the basis of the traditional low-power technology to obtain better optimized results.The gated clock technology determines the final design plan by analyzing the influence of different parameters on the clock structure and influence.At the end of the article is the verification part of the chip,including formal verification,physical verification,timing analysis,etc.The focus is on using the AOCV method to gradually conduct a more accurate analysis. |
