Which of the following is a type of PROM that can be erased by exposing it to ultraviolet light?

An EPROM (erasable programmable read-only memory) is a special type of PROM that can be erased by exposing it to ultraviolet light.

Can we erase PROM?

While PROM cannot be erased, two other versions of PROM have been developed that can be erased and reprogrammed. One type is called EPROM, or Erasable Programmable Read-Only Memory. This type of memory uses floating-gate transistors and can be erased by strong ultraviolet light.

How one can erase data in PROM devices?

It is an array of floating-gate transistors individually programmed by an electronic device that supplies higher voltages than those normally used in digital circuits. Once programmed, an EPROM can be erased by exposing it to strong ultraviolet light source (such as from a mercury-vapor lamp).

What are EPROMs used for?

The Erasable Programmable Read-Only Memory (EPROM) is a data circuit that retains its memory even when power is off. Security system manufacturers use EPROMs to hold both the operating system and the program for the access control panel.

Are EPROMs still used?

No longer used, EPROMS evolved into EEPROMs and flash memory, both of which can be erased in place on the circuit board. See EPROM programmer, EEPROM, flash memory and memory types.

Which of the following is a type of EEPROM?

Related types Flash memory is a later form of EEPROM. In the industry, there is a convention to reserve the term EEPROM to byte-wise erasable memories compared to block-wise erasable flash memories.

What is prom example?

A programmable read-only memory (PROM) is a form of digital memory where the setting of each bit is locked by a fuse or antifuse. (eFUSEs can also be used) It is one type of read-only memory (ROM). Blank PROM chips are programmed by plugging them into a device called a PROM programmer.

What does clearing EEPROM do?

Electrically erasable programmable read-only memory (EEPROM) is a type of nonvolatile memory that enables users to repeatedly store and erase small amounts of data by applying a voltage pulse.

Are eproms still used?

What is the difference between EEPROM and flash memory?

Flash uses NAND-type memory, while EEPROM uses NOR type. Flash is block-wise erasable, while EEPROM is byte-wise erasable. Flash is constantly rewritten, while other EEPROMs are seldom rewritten. Flash is used when large amounts are needed, while EEPROM is used when only small amounts are needed.

What devices use EEPROM?

EEPROM (also E2PROM) stands for electrically erasable programmable read-only memory and is a type of non-volatile memory used in computers, integrated in microcontrollers for smart cards and remote keyless systems, and other electronic devices to store relatively small amounts of data by allowing individual bytes to be …

Is EEPROM that can be written and erased in blocks?

Pronounced double-e-prom or e-e-prom, an EEPROM is a special type of PROM that can be erased by exposing it to an electrical charge. The principal difference is that EEPROM requires data to be written or erased one byte at a time whereas flash memory allows data to be written or erased in blocks.

Can a prom be erased by an EEPROM?

An EPROM (erasable programmable read-only memory) is a special type of PROM that can be erased by exposing it to ultraviolet light. Once it is erased, it can be reprogrammed. An EEPROM is similar to a PROM, but requires only electricity to be erased.

What is the process of programming a prom called?

The process of programming a PROM is sometimes called burning the PROM. EPROM – (erasable programmable read-only memory) is a special type of PROM that can be erased by exposing it to ultraviolet light. Once it is erased, it can be reprogrammed.

What’s the difference between a ROM and a prom?

The difference between a PROM and a ROM is that a PROM is manufactured as blank memory and programmed later with a special device called PROM programmer or the PROM burner, whereas the ROM is programmed during manufacturing process. The process of programming a PROM is sometimes called burning a PROM.