FPGA (Field Programmable Gate Array) switch unit based on STT-MRAM (Short Term Transistor-Magnetic Random Access Memory)

Abstract

The invention discloses an FPGA switch unit based on an STT-MRAM, and belongs to the technical field of integrated circuits. The FPGA switch unit based on the STT-MRAM comprises an STT-MRAM element group, a control unit, a phase inverter and a switch unit. The STT-MRAM element group generates an electric potential to the phase inverter. The phase inverter inverts the electric potential and feeds back the electric potential to the control unit. The control unit controls the electric potential latch of the STT-MRAM element group under the action of the phase inverter; and the switch unit is connected with the output end of the phase inverter. The FPGA switch unit can realize that data configured in the STT-MRAM element group cannot be lost after the FPGA is powered down. Compared with a traditional SRAM type FPGA, the FPGA does not need to read data from an external independent memory for operation when powered on, and the starting speed is high. Due to the fact that the STT-MRAM elementset is high in read-write speed and low in power consumption, compared with a FLASH type FPGA, the FPGA switch unit has the higher read-write frequency, the higher erasing and writing frequency and the lower cost.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to an FPGA switch unit based on STT-MRAM. Background technique [0002] FPGA (Field-Programmable Gate Array) is a semi-customized field-programmable logic gate array. Due to its short development cycle, high cost performance, and good flexibility, it is widely used in communications, aerospace, automotive, medical, and process control. and other fields. [0003] There are currently three main types of FPGA technology: FPGA technology configured with SRAM, FPGA technology configured with antifuse, and FPGA technology configured with Flash. Among them, the SRAM-configured FPGA has the advantages of fast speed, unlimited programming times, and strong process compatibility, and is currently the mainstream FPGA configuration technology; the anti-fuse-configured FPGA has the characteristics of non-volatility compared with the SRAM-configured FPGA. It can solve the problem of...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of FPGA switch unit based on STT-MRAM, to solve traditional SRAM type FPGA poor reliability, power-off data loss, and the problem of high cost and low operating frequency of FLASH type FPGA

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