What are FPGAs?
FPGA stands for Field Programmable Gate Array. They are small semiconductor logic chips known as integrated circuits, or ICs for short. FPGAs are built from one basic logic cell, duplicated hundreds of times.
What do they consist of?
They consist of a configurable logic block, programmable switch matrix, I/O blocks and Interconnects.
Configurable Logic Block
CLB consist of lookup tables (LUTs), flip flops and multiplexers. They are used to implement complex design functions and synchronise the code on the FPGA.
Programmable Switch Matrix
A programmable switch matrix (PSM) is used to control the interconnections between the configurable logic blocks and the input / output blocks. The programmable switch matrix connects each block according to the program code and has switch elements that have six pass transistors inside.
I/O Blocks
I/O blocks are pins that can be programmed as an input pins, output pins or both.
Interconnects carry signals via wires to connect inputs and outputs to logic blocks.
Features and Benefits
FPGA functionality can easily be developed upon every power-up of the device. Design engineers can enable changes by downloading new software configuration files into the device and test the changes.
How do FPGAs differ from CPLDs?
CPLDs stand for complex programmable logic devices. They are used to implement complex combinational or sequential circuits. They are made up of logic array blocks, programmable interconnects and I/O blocks.
FPGA Applications
They are found in many applications such as radar systems, military hardware, medical devices and telecommunication technology. Their reprogrammable nature means FPGAs are suitable for a wide range of solutions. They are able to be any digital circuit, depending on the number of logic blocks it contains. Engineers often use FPGAs in prototype development and specialise designed integrated circuits (ICs).

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Description Price Family Name Number of Logic Gates Number of Logic Cells Number of Logic Units Dedicated DSP Number of Registers Number of Multipliers Package Type Pin Count Number of RAM Bits Dimensions Height Length Maximum Operating Supply Voltage
RS Stock No. 830-3578
Mfr. Part No.5CSXFC5D6F31C8N
Cyclone V SX 85000 85000 32075 Yes 128300 174 (18 x 18) FBGA 896 4450K - - 31mm 1.13 V
RS Stock No. 170-2985
Mfr. Part No.EP4CE6U14I7N
Each (In a Tray of 119)
Cyclone 6272 6272 392 Yes - 360 (18 x 18) UBGA 256 276480 - - 14mm 1.25 V
RS Stock No. 168-4224
Mfr. Part No.ICE40LP1K-CM49
Each (In a Tray of 490)
ICE40 LP - 1280 160 - 1280 - UCBGA 49 64kbit 3 x 3 x 0.9mm 0.9mm 3mm 1.26 V
RS Stock No. 790-7030
Mfr. Part No.5AGXBA7D6F31C6N
Arria V - 242000 - Yes 366720 1600 (18 x 18) FBGA 896 1448 kbit, 13660 kbit 31 x 31 x 2mm 2mm 31mm 1.13 V
RS Stock No. 170-2979
Mfr. Part No.EP4CE30F29C6N
Each (In a Tray of 36)
Cyclone 28848 28848 1803 Yes - 360 (18 x 18) FBGA 780 608256 - - 29mm 1.25 V
RS Stock No. 173-2106
Mfr. Part No.XC3S500E-4FGG320C
Each (In a Tray of 84)
Spartan-3E 500000 10476 1164 - 9312 20 (18 x 18) FBGA 320 74752bit 19 x 19 x 1.4mm 1.4mm 19mm 1.26 V
RS Stock No. 169-5489
Mfr. Part No.EP1C6F256I7N
Each (In a Tray of 90)
Cyclone - 5980 5980 - - - FBGA 256 - 17 x 17 x 1.8mm 1.8mm 17mm 1.575 V
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An FPGA is a semiconductor device consisting of ...
An FPGA is a semiconductor device consisting of a matrix of Configurable Logic Blocks (CLBs) connected through programmable interconnects. The user determines these interconnections by programming SRAM. A CLB can be simple (AND, OR gates, etc) or complex (a block ...