Difference between PROM and EPROM

The main key difference between PROM ad EPROM is that PROM can be programmed just once means that it can be written only one time whereas EPROM is erasable, hence it can be reprogrammed or rewritten.  So here this article gives the main key difference between PROM and EPROM to better understand this topic.

Definition of PROM

PROM stands for programmable read-only memory, It was intended to fulfil the need for a set of ROM which can contain a particular memory content. The PROM memory is written only once and programmed electrically by the user at the time or after the original chip fabrication. The necessary content file is supplied by the user and inserted in the machine known as the ROM programmer. There exist a fuse at each programme connection and it is blown when the connection is not needed.

Definition of EPROM

EPROM stands for erasable programmable read-only memory, it is the type of ROM is read ad written optically. To write associate EPROM, its storage cells should stay within the same initial state. EPROM provides reduced storage permanency as compared to PROM as a result of the EPROM is receptive to radio ad electrical noise. In the  EPROM, MOS transistors are used.

Difference between PROM and EPROM:

  • PROM is not reusable, but the EPROM is reusable multiple times.
  • PROM is inexpensive, while EPROM is processed can be reversed.
  • The processes of PROM are irreversible, it is memory is permanent, whereas the EPROM process can be reversed.
  • PROM is the type of ROM and it is written only, while EPROM is also the type of ROM is read and written optically.
  • The storage endurance of EPROM is high, while in EPROM storage endurance of PROM is less than PROM.
  • PROM is better than EPROM in terms of flexibility ad scale, while in EPROM has less flexibility and scalability.
  • PROM is totally sheathed during a plastic cowl, while in EPROM is boxed in during a rock crystal windows so the ultraviolet radiation rays will transfer through it.
  • PROM is the older version of EPROM, while the EPROM is the modern version of PROM.
  • PROM is a bipolar transistor is used, while in EPROM, a MOS transistor is used.
  • If there is miscalculations or error or bug while writing on PROM, it becomes unusable. Whereas if there miscalculation or error or bug while on EPROM, it will still be used once more.
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Difference between ROM and PROM

 ROM refere to memroy chip storing permanent data and instruction, While in PROM is a type of read only memory. It is a type of memory which can only be modified once not again and again. So here this article gives the main key difference between ROM and PROM to better understand this topic.

Definition of ROM

ROM Stand for read-only memory, ROM computer memory in which program instruction, operating procedures, or other data are permanently stored, generally on electronic chips during manufacture, and the ordinarily cannot be changed by the user.

Definition of PROM

PROM stands for programmable read-only memory. It is a computer memory chip, and it is possible to program it once after creation. After programming the PROM, the information we can write to becomes permanent. Therefore, we cannot erase or delete that written data. The PROM chip was commonly used in earlier computer BIOS systems.

Difference between ROM ad PROM:

  • ROM stands for read-only memory, While PROM stands for programmable read-only memory.
  • ROM refers to a memory chip storing permanent data and instruction, while in PROM is the type of read-only memory. It is a type of memory that can only be modified once not again and again.
  • ROM cannot be erased or written too. Memory chips that are programmed in factories for large run production.  PROM is programmed only once by blown of internal fuses permanenly and is also called field programmble ROM and is progemmed by using a ROM programmer in the lab or onsite.
  • ROM is onvolatile, which means it contents are not lost when power is removed from the computer. Most of the ROM chips are designed to be modified so, there are less chance of any type of error. User can modify it by using EPROM and EEPROM.

Difference between EPROM and EEPROM

The main key difference between EPROM and EEPROM is that the content of EPROM is erased by using UV rays, while the content of EPROM is erased by using electric signals. So here this article gives the main key difference between EPROM and EEPROM to better understand this topic.

Definition of EPROM

EPROM stands for erasable programmable read-only memory, it is the type of ROM that is read ad written optically. To write associate EPROM, its storage cells should stay within the same initial state. EPROM provides reduced storage permanency as compared to PROM as a result of the EPROM is receptive to radio ad electrical noise. In the  EPROM, MOS transistors is used.

Definition of EEPROM

EEPROM stands for electrically erasable programmable read-only memory, it is electric signal is used to erase the EEPROM contents. EEPROM may be nonvolatile memory that retains its content notwithstanding the ability is shifted. It stores the little quantity of information used for laptop or computer BIOS. It absolutely was a replacement for the  PROM as well as EPROM. 

Difference between EPROM and EEPROM:

  • EPROM stands for erasable programmable read-only memory, EPROM stands for erasable programmable read-only memory
  • EPROM can be easily recognized by its appearance it has a transparent quartz crystal window lid at the top of the chip for exposure to UV light, while EEPROM  is totally erased inside an opaque plastic case.
  • EPROM was the first re-programmable ROM whereas, the EEPROM is the replacement and modem version of EPROM.
  • The erase reprogram the EPROM the chip has to e removed and taken out the computer, while on the other hand EEPROM chip is erased and reprogrammed in the circuit of the computer itself.
  • EPROM content is erased by exposing the EPROM chip to the UV lights whereas the EEPROM content is erased by applying the electric signal to the chip.
  • EPROM includes a rock crystal window at the top, EEPROM area unit wholly sheathed in an opaque plastic case.
  • The transistor used in EPROM consumes 12.5 volt, The transistor used in EEPROM consumes 5 volts.
  • EPROM chip has got to be off from the computer circuit to erase and reprogram the computer BIOS, EEPROM chip will be erased and reprogrammed within the electrical circuit to erase and reprogram the content of the computer BIOS.
  • EPROM is a modern version of PROM, EEPROM is the modem version of EPROM.
  • EPROM relative size of cell EPROM is one, while in The relative of cell in EEPROM is 3.
  • Both EPROM and EEPROM is external programming.
  • EPROM, hot electron injection programming technique is used, EEPROM tunnel effect is used as a programming technique.
  • EPROM an erasure consumes 15 to 20 minutes for erasing contents, While in EEPROM an erasure consumes 5 millisecond time for erasing contents.
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Difference between PAL and PLA

PLA ad PLA are the types of programmable logic devices (PLD) that are used to design combination logic together with sequential logic. The main significant difference between PAL and PLA is PAL ca easily produce a combination logic circuit. While in PLA is more flexile ad adaptable than PAL. So here this article gives the main key difference between PAL and PLA to better understand this topic.

Definition of PLA

PLA Stands for the programmable logic array, which presents the boolean function in the SOP form. The PLA contains  AND and OR and NOT gates fabricated on the chip. It passes every input by a NOT gate which makes each input and its complement available to every OR gate. The OR gate output produces chip output. So, this is how suitable connections are made to employ the sum of product (SOP) expressions function.

Definition of PAL

PAL stands for programmable array logic, it is also a PLD circuit that works similarly to the PLA. PAL employs the programmable AND gates but they are fixed with OR gates, unlike PLA. It implements two simple functions where the number of links AND gate to each OR gate specifies the maximum number of product terms that can be generated in the sum of product representation of the particular function. While the AND gates are perpetually connected to the OR gates, which signifies that the produced product terms is not shared with the output function.

Difference between PAL and PLA:

  • PAL stands for programmable array logic, while PLA stands for a programmable logic array.
  • The construction of PAL can be done using a programmable collection of AND & OR gates. The construction of PLA can be done using the programmable collection of AND & fixed collection of using OR gates.
  • The flexibility of PAL programming is more, while PLA is less flexible.
  • The availability of PAL is less prolific, The availability of PLA is more.
  • The cost of a PAL is expensive, while the cost of PLA is a middle range.
  • The number of functions implemented is PAL is large, The number of functions implemented is limited.
  • PAL more used than PLA, PLA is less used than PAL.
  • The speed of  PAL is too slow, but the speed of PLA is high. 
  • PAL complexity is high, The complexity of PLA is high.

CPLD vs FPGA

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, 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.

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 suitable in small gate count designs such as a glue logic

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 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.

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.

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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