Pflash type programmable logic device based on cluster circuit

Abstract

The invention discloses a pflash type programmable logic device based on cluster circuits, and relates to the field of programmable logic devices, the programmable logic device comprises a kernel power management circuit, a word line circuit, a bit line circuit, a substrate potential circuit and a plurality of cluster circuits; each cluster circuit comprises a programmable wiring switch matrix, a logic unit circuit and a pull-down network circuit; the pull-down network circuit is connected with the signal input end of each switch unit; the kernel power supply management circuit obtains programming signals and is connected with the logic unit circuits in all the cluster circuits to provide kernel power supply; according to the programmable logic device, the circuits are matched to work to carry out operations such as erasing and programming, the connection relation between signals and the logic unit circuit is changed, so that the logic function needed by a user is achieved, the cluster circuit is achieved through the non-volatile pflash, then the whole programmable logic device is formed, and the programmable logic device has the advantages that power failure information is not lost, power-on quick start and single particle immunity are achieved. The application in a space environment and a ground radiation environment is met.

Description

technical field [0001] The invention relates to the field of programmable logic devices, in particular to a p_flash type programmable logic device based on cluster circuits. Background technique [0002] FPGA (Field Programmable Gate Array, Field Programmable Logic Gate Array) is a hardware programmable logic device. In addition to being used in mobile communications, data centers and other fields, it is also widely used in prototype verification in integrated circuit design, which can effectively verify circuit Functional correctness while speeding up circuit design. However, conventional SRAM-type FPGAs have disadvantages such as power-off information loss, power-on data reloading, and SRAM single-event flipping. The reliability is low, and it is difficult to apply to aviation and other fields with strong particle interference and high reliability requirements. . Contents of the invention [0003] The present inventor proposes a kind of p_flash type programmable logic ...

AI Technical Summary

Problems solved by technology

However, conventional SRAM-type FPGAs have disadvantages such as power-off information loss, power-on data reloading, and SRAM single-event flipping. The reliability is low, and it is difficult to apply to aviation and other fields with strong particle interference and high reliability requirements.

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