Field Programmable Gate Array Technology S Trimberger: Understand the Fundamentals and Principles of

Any input can be connected to any AND gate by connecting the horizontal and vertical interconnect lines. The outputs from different AND gates can then be applied to any of the OR gates with programmable interconnects.

Field Programmable Gate Array Technology S Trimberger.pdf

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A PAL is similar to the PLA but the difference is that in PAL, only the AND gate plane is programmable while the OR gate plane is fixed during fabrication. Even though PALs are less flexible than PLAs, they eliminate the time delays associated with programmable OR Gates.

Field Programmable Gate Arrays or FPGAs in short are pre-fabricated Silicon devices that consists of a matrix of reconfigurable logic circuitry and programmable interconnects arranged in a two-dimensional array. The programmable Logic Cells can be configured to perform any digital function and the programmable interconnects (or switches) provide the connections among different logic cells.

In island style routing architecture, the logic blocks are arranged in a two-dimensional array and are interconnected using a programmable routing network. This type of routing is widely used in commercial FPGAs.

The anti-fuse programming technology is an old technique of producing one-time programmable devices. They are implemented using a link called the antifuse, which in its unprogrammed state has a very high resistance and can be considered an open circuit. 2ff7e9595c