FPGAs

FPGAs
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
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. 921-3514
Mfr. Part No.EP4CE6E22C8N
BrandAltera
$20.505
Each (In a Tray of 60)
units
Cyclone IV E - 6272 392 Yes - 15 (18 x 18) EQFP 144 270kbit 20 x 20 x 1.6mm 1.6mm 20mm 1.25 V
RS Stock No. 729-3757
Mfr. Part No.EP4CE6E22C8N
BrandAltera
$21.69
Each
units
Cyclone IV E - 6272 392 Yes - 15 (18 x 18) EQFP 144 270kbit 20 x 20 x 1.6mm 1.6mm 20mm 1.25 V
RS Stock No. 772-0057
Mfr. Part No.iCE40HX4K-TQ144
$13.88
Each
units
iCE40 HX - 3520 440 - 3520 - TQFP 144 80kbit 20 x 20 x 1.45mm 1.45mm 20mm 1.26 V
RS Stock No. 173-2086
Mfr. Part No.XC3S250E-4VQG100I
BrandXilinx
$35.499
Each (In a Tray of 90)
units
Spartan-3E 250000 5508 612 - 4896 12 (18 x 18) VTQFP 100 38912bit 14 x 14 x 1mm 1mm 14mm 1.26 V
RS Stock No. 783-2879
Mfr. Part No.XC7Z045-1FFG900C
BrandXilinx
$2,598.05
Each
units
ZYNQ-7 - - - Yes - - FFG 900 - - - - 3.3 V
RS Stock No. 134-093
Mfr. Part No.XC3S250E-4VQG100I
BrandXilinx
$35.50
Each
units
Spartan-3E 250000 5508 612 - 4896 12 (18 x 18) VTQFP 100 38912bit 14 x 14 x 1mm 1mm 14mm 1.26 V
RS Stock No. 168-4223
Mfr. Part No.ICE40HX8K-CB132
$24.364
Each (In a Tray of 348)
units
iCE40 HX - 7680 960 - 7680 - csBGA 132 128kbit 8 x 8 x 1.1mm 1.1mm 8mm 1.26 V
RS Stock No. 168-4222
Mfr. Part No.ICE40HX4K-TQ144
$19.021
Each (In a Tray of 60)
units
iCE40 HX - 3520 440 - 3520 - TQFP 144 80kbit 20 x 20 x 1.45mm 1.45mm 20mm 1.26 V
RS Stock No. 772-0060
Mfr. Part No.iCE40HX8K-CB132
$19.60
Each
units
iCE40 HX - 7680 960 - 7680 - csBGA 132 128kbit 8 x 8 x 1.1mm 1.1mm 8mm 1.26 V
RS Stock No. 624-4212
Mfr. Part No.EP2C5Q208C8N
BrandAltera
$28.45
Each
units
Cyclone II - 4608 4608 - - 13 (18 x 18) PQFP 208 - 28 x 28 x 3.4mm 3.4mm 28mm 1.25 V
RS Stock No. 168-4224
Mfr. Part No.ICE40LP1K-CM49
$10.414
Each (In a Tray of 490)
units
iCE40 LP - 1280 160 - 1280 - UCBGA 49 64kbit 3 x 3 x 0.9mm 0.9mm 3mm 1.26 V
RS Stock No. 168-4225
Mfr. Part No.ICE40LP1K-QN84
$10.836
Each (In a Bag of 260)
units
iCE40 LP - 1280 160 - 1280 - QFN 84 64kbit 7 x 7 x 0.9mm 0.9mm 7mm 1.26 V
RS Stock No. 624-4256
Mfr. Part No.EP2C8Q208C8N
BrandAltera
$63.72
Each
units
Cyclone II - 8256 8256 - - 18 (18 x 18) PQFP 208 - 28 x 28 x 3.4mm 3.4mm 28mm 1.25 V
RS Stock No. 697-2891
Mfr. Part No.XC3S500E-4FGG320C
BrandXilinx
$74.50
Each
units
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. 790-7024
Mfr. Part No.5AGXBA5D6F31C6N
BrandAltera
$1,042.65
Each
units
Arria V - 190000 - Yes 286792 1200 (18 x 18) FBGA 896 1173 kbit, 11800 kbit 31 x 31 x 2mm 2mm 31mm 1.13 V
RS Stock No. 173-2105
Mfr. Part No.XC3S500E-4FTG256I
BrandXilinx
$74.494
Each (In a Tray of 90)
units
Spartan-3E 500000 10476 1164 - 9312 20 (18 x 18) FTBGA 256 74752bit 17 x 17 x 1mm 1mm 17mm 1.26 V
RS Stock No. 134-087
Mfr. Part No.XC3S500E-4FTG256I
BrandXilinx
$109.63
Each
units
Spartan-3E 500000 10476 1164 - 9312 20 (18 x 18) FTBGA 256 74752bit 17 x 17 x 1mm 1mm 17mm 1.26 V
RS Stock No. 703-0843
Mfr. Part No.LFXP2-5E-5TN144C
$23.06
Each
units
XP2 - 5000 5000 Yes - 12 (18 x 18) TQFP 144 10240bit 20 x 20 x 1.4mm 1.4mm 20mm 1.26 V
RS Stock No. 173-2106
Mfr. Part No.XC3S500E-4FGG320C
BrandXilinx
$74.498
Each (In a Tray of 84)
units
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. 697-2841
Mfr. Part No.XC3S50A-4VQG100C
BrandXilinx
$12.69
Each
units
Spartan-3A 50000 1584 1584 - - 3 (18 x 18) VTQFP 100 11264bit 14 x 14 x 1mm 1mm 14mm 1.26 V
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