What is antifuse technology in FPGA?

What is antifuse technology in FPGA?

An antifuse is an electrically programmable two-terminal device. with small area and low parasitic resistance and capacitance. Field programmable gate arrays (FPGA’s) using antfuses in a. segmented channel routing architecture now offer the digital logic. capabilities of an 8000-gate conventional gate array and system.

What is antifuse explain antifuse technology?

A programmable chip technology that creates permanent, conductive paths between transistors. In contrast to “blowing fuses” in the fusible link method, which opens a circuit by breaking apart a conductive path, the antifuse method closes the circuit by “growing” a conductive via.

Where is antifuse technology used?

Antifuses are widely used to permanently program integrated circuits (ICs). Certain programmable logic devices (PLDs), such as structured ASICs, use fuse technology to configure logic circuits and create a customized design from a standard IC design.

How does antifuse FPGA work?

In antifuse FPGAs, as fuses are programmed, it becomes impossible to uniquely address previously programmed fuses making programming essentially a one-way function. Thus the architecture of the antifuse-based devices makes electronic readback impossible, even if the locking mechanism is not used.

What are the main programming technologies for FPGAs?

Programming technologies may be permanent or non-permanent. For commerical FPGAs, the main switch technologies are antifuses (e.g. Actel) and Static RAM cells (e.g. Xilinx).

What are the functions of IOB’s in FPGA?

The Input/Output Block (IOB) provides a programmable, unidirectional or bidirectional interface between a package pin and the FPGA’s internal logic, supporting a wide variety of standard interfaces.

What programmable technology is used in a PGA devices?

SRAM based FPGAs are used to program both the logic cells and the interconnects and they have become quite predominant due to their re-programmability and use of CMOS technology, which is known for its low dynamic power consumption, high speed and tighter integration.

Why SRAM is used in FPGA?

SRAM cells are the basic cells used for SRAM‐based FPGA. SRAM‐based programming technology has become the dominant approach for FPGAs because of its reprogrammability and the use of standard CMOS process technology, which results in larger package density and higher speed.

What is LUT in VLSI?

A LUT, which stands for LookUp Table, in general terms is basically a table that determines what the output is for any given input(s). In the context of combinational logic, it is the truth table.

What are the three structures in FPGA?

Structure of an FPGA

• Configurable Logic Block (CLB) A CLB is the fundamental piece of an FPGA and is what gives it its ability to take on different hardware configurations.
• Digital Signal Processing (DSP) Slice.
• Transceivers.
• Block Random Access Memory (BRAM)
• Input/Output (IO) Blocks.

What are the programming technologies of FPGA?

For commerical FPGAs, the main switch technologies are antifuses (e.g. Actel) and Static RAM cells (e.g. Xilinx). For commerical CPLDs (e.g. Altera MAX), the main switch technologies are Erasable Programmable ROM (EPROM) transistors and Electrically Erasable PROM (EEP- ROM) transistors.