CPLD vs FPGA | Difference | Comparison

One of the most consistently brought up questions among the youngest engineers and FPGA beginners is whether they should use FPGA or CPLD, so here this article gives the more key difference between FPGA and CPLD to better understand this topic. 

Definition of FPGA

FPGA is a programmable logic device that harbors a complex architecture that allows them a high logic capacity, making them ideal for high gate count designs such as server applications, and video encoders/decoders. Due to the fact of FPGA consist of a large number of gates the internal delay in this chip is sometimes unpredictable.

Related article Advantages and disadvantages of CPLD

Definition of CPLD

CPLD is a programmable logic device that is based on electricity erasable programmable read-only memory has a comparatively less complex architecture as compared to FPGA and is much more suitable in small gate count designs such as glue logic.

Related article: FPGA Vs GPU

Difference between CPLD and FPGA:

  • FPGA contains up to 100000 of tiny logic blocks while CPLD contains only a few blocks of logic that reach up to a few thousand.
  • FPGA is internally based on lookup tables, while in CPLD form logic functions with a sea of gates.
  • FPGA is a RAM-based digital logic chip but in CPLD is EEPROM based.
  • FPGA is great for the more complex application while in CPLD is better for simpler ones.
  • In terms of architecture, FPGA is considered fine-grain devices while in CPLD are coarse grain.
  • FPGA is made up of tiny logic blocks while CPLD is made of larger blocks.
  • FPGA is great for more complex applications while CPLD is better for simpler ones.
  • FPGA is more expensive while in CPLD is much cheaper.
  • Delay is much more predictable in CPLD than in FPGAs. 
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MSS full form

 What is the full form of MSS?

Answer:

  • Mobile Station Services

What does MSS mean?


MSS provides two-way voice communication and it also provides data communication to global users who are on the go or in remote locations, terminals range in the size from handheld to laptop size units. The terminal can also e mounted in a vehicle, with communication maintained while the vehicle is moving. MSS operates at L-band low enough in the frequency spectrum to avoid and neglected the rain fade associated with higher bandwidth Ku and Ka-band fixed satellite system.

FSS full form

 What is the full form of FSS?

Answer:

  • Fixed Service Satellites

What does FSS mean?


FSS is part of satellite terminology, it is a radio communication service between ground stations at a given position which is fixed to a specific area, which uses very small aperture terminal technology for providing high-speed communication to the end-users. The FSS works in the band such as a Ka-band, C band which aids in offering superior service on the existing networks.

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LSI full form

 What is the full form of LSI?

Answer:

  • Large Scale Integration 

What does LSI mean?


LSI is the process of integrating or it is embedding thousands of transistors on a single silicon semiconductor microchip. LSI technology was conceived in the mid-1970 when the computer processor microchip was under development.


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MSI full form

 What is the full form of MSI?

Answer:

  • Medium Scale Integration

What does MSI mean?


MSI was an attractive economic method, which cost little more systems to be produced using a circuit board called small circuit boards, less assembly work, and a number of other advantages. It has been replaced by successive integration methods such as the large scale integration, and ultra large scale, and very large scale as the ability to increase the number of transistors in integrated circuits improved.  SO the next development was of large-scale integration(LSI).

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SSI full form

 What is the full form of  SSI?

Answer:

  • Small Scale Interaction

What does SSI mean?


The first integrated circuit contains only a few transistors and so was called SSI. They used a circuit containing transistor numbering in the tens. They were very crucial; in the development of early computers. SSI was followed by the introduction of the device which contained hundreds of transistors on each chip, and so were called the medium-scale integration.

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CAD full form

 What is the full form of CAD?

Answer:

  • Computer-Aided Design

What does CAD mean?


CAD also is known as computer-aided drafting, is the use of computer software technology and systems to design and create a 2D and 3D design. It is a combination of hardware and software that makes engineers design everything. It provides the facility to view a design from any angle and to zoom in out for closure or distant look respectively. When a designer makes a change in the design, all the values must be depending on that change automatically according to that.

VLSI full form

 What is the full form of VLSI?

Answer:

  • Very Large Scale Integration

What does VLSI mean?


VLSI is the process of creating an integrated circuit by integrating hundreds of thousands of transistors onto a single chip. It is used in creating so many chips and circuits on a single mini chip of silicon. VLSI began when complex semiconductors and communication technologies were being developed in the 1970s. The microprocessor is a VLSI device. An electronic circuit might consist of a CPU device, RAM, ROM, and other glue logic devices. VLSI lets IC designers that added all of these into one single chip.

ASIC full form

 What is the full form of ASIC?

Answer:

  • Application Specific Integrated Circuit

What does ASIC mean?

ASIC is a microchip designed for a special application, such as a particular kind of transmission protocol or a handheld computer. You might contrast it with a general integrated circuit, such as the microprocessor and the random access memory chips in your PC. ASIC is used to a wide range of applications, including auto emission control, environmental monitoring ad personal digital assistant.

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  1. Full form of PLD
  2. Full form of PLA 
  3. Full form of PAL
  4. Full form of GAL
  5. Full form of FPGA
  6. Full form of VHDL
  7. Full form of HDL
  8. Full form of VLSI
  9. Full form of ULSI
  10. Full form of SSI
  11. Full form of MSI
  12. Full form of LSI
  13. Full form of CAD

HDL full form

 What is the full form of HDL?

Answer:

  • Hardware Description Language

What does HDL mean?


HDL is a language used for describing a digital system like a network switch or a microprocessor or a memory or a flip flop. It means, by using an HDL we can describe any digital hardware at any level. Design, which is described in HDL is independent of technology. It is very easy for designing and debugging, and also is normally more useful than schematics, particularly for large circuits.

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  1. Full form of PISO
  2. Full form of  ROM
  3. Full form of PROM
  4. Full form of EPROM
  5. Full form of EEPROM
  6. Full form of SRM

VHDL full form

 What is the full form of VHDL?

Answer:

  • VHSIC (Very High-Speed Integrated Circuit) Hardware Description Language

What does VHDL mean?


VHDL is a hardware description language. It is a programming language used to model a digital system by data flow, behavioral, and structural style of modeling. There is some predefined data type of VHDL, apart from these a user can also define its own data type. This language was first introduced in the year of 1981 for the department of defense under the VHSIC program.

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CLB full form

 What is the full form of CLB?

Answer:

  • Configurable Logic Block

What does CLB mean?


A CLB is the basic repeating logic resource on an FPGA. When linked together by routing resources, the components in CLBs which are executing the complex logic functions and implements memory function, and synchronize code on the FPGA. CLB performs the logic given to the module. The interconnection between CLB and I/O blocks are made with the help of horizontal routing channels, vertical routing channels, and PSM.

FPGA full form

 What is the full form of FPGA?

Answer:

  • Field Programmable Gate Array

What does FPGA mean?


FPGA is an IC that can be programmable to perform a customized operation for a specific application. It contains ten thousand or to more than a million logic gates with programmable interconnection. In the field of VLSI, FPGA has been very popular. There are input-output blocks, which are designed and numbered according to function. For each module of logic level composition, these are called as the CLB's. Languages such as a VHDL and Verilog are used to write for FPGA programming.

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CPLD full form

 What is the full form of CPLD?

Answer:

  • Complex Programmable Logic Device

What does CPLD mean?

A CPLD is an innovative product compared to earlier logic devices like programmable logic ad programmable array logic. A CPLD has a complexity between PALs ad FPGA. It also has the architectural features of both PALs and FPGAs. The main architectural difference between a CPLD ad FPGA is based on lookup tables, whereas CPLDs are based on a sea of gates.

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  1. Full form of PLD
  2. Full form of PLA 
  3. Full form of PAL
  4. Full form of GAL
  5. Full form of FPGA
  6. Full form of CLB
  7. Full form of VHDL
  8. Full form of HDL
  9. Full form of ASIC
  10. Full form of VLSI
  11. Full form of ULSI
  12. Full form of SSI
  13. Full form of MSI
  14. Full form of LSI
  15. Full form of CAD

MPCB Full form

 What is the MPCB full form in electrical?

Answer:

  • Motor Protection Circuit Breaker

What does MPCB mean?


MPCB is a combination protection unit comprising the function of a switch, a short circuit protective device, and an overload relay. They are designed for various current ratings to suit different motor ratings. MPCB is a device that is used to open and close a circuit manually and interrupt the circuit automatically on the occurrence of faults.

OCB full form

 What is the full form of OCB?

Answer:

  • Oil Circuit Breaker

What does OCB mean?


OIL is the one of the oldest type of circuit breaker. It includes a separate contacts and the main function of these contacts is to separate an insulating oil. It has good insulating properties compare with air. When the fault occurs then the contact of the breaker will open beneath the oil. Once the arc is struck among the two contact of the breaker then the heat of the arc will dissolve the surrounding oil and separates into a significant volume of gaseous hydrogen at high pressure. The main features of this circuit breakers are low cost, simplicity and reliability.

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AFCI full form

 What is the full form of AFCI in electrical?

Answer:

  • Arc Fault Circuit Interrupter

What does AFCI mean?


AFCI is a type of circuit breaker which protects against an unintentional electrical discharge in an electrical or wiring that could cause a fire. Once the breaker senses the electrical jump and abnormal path, it instantly disconnects and the damaged to the circuit before the arc builds enough heat to catch fire.

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GFCI full form

 What is GFCI full form in electrical?

Answer:

  • Ground Fault Circuit Interrupter

What does GFCI mean?


GFCI is an electrical device that is used to protect you from severe electrical shocks. GFCI circuit breaker cuts the power to the entire circuit. GFCI disconnects the circuit when an unbalanced current is detected between an energized conductor and neutral return conductors. They are tripped by an overload of the current. at that time short circuit line to ground fault. This can occur when an unwanted path forms between an electrical current and grounded elements.

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VCB full form

 What the VCB full form in electrical?

Answer:

  • Vacuum Circuit Breaker

What does VCB mean?


As we know, the basic function of the circuit breaker is an automatically operated electrical switch and it is to protect an electrical circuit and also device from damage caused by overload or short circuit. This is the basic function is to detect a fault condition. It is also by interrupting continuity, to immediately discontinue electrical flow. The vacuum circuit breaker comprises a steel arc chamber in the center of symmetrically arranged ceramic insulators.

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ACB full form

 What is the ACB full form in electrical?

Answer:

  • Air Circuit Breaker

What does ACB mean?


ACB is an electrical device that is used to provide overcurrent and short circuit protection for electric circuits over 800 Amps to 10K amps. There are usually used in low voltage applications below voltage 450. We can find these systems in distribution panels. Air circuit breakers operate with their contact in free air. Their method of arc quenching control is entirely different from that of oil breakers.

 

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