Skip to main content

Difference between EPROM and EEPROM Nitish Agarwal The Crazy Programmer

We all are well aware of Read-Only Memory, abbreviated as ROM, which is actually a memory chip used to store data permanently and retains it even when the system is turned off. In this article, we will take a look at the two modified versions of ROM – EPROM and EEPROM.

ROM is a type of non-volatile memory and the data once written on it cannot be erased, but the advanced versions of ROM – EPROM and EEPROM resolved this issue and allowed erasability and reprogramming of data.

Difference between EPROM and EEPROM

EPROM stands for Erasable Programmable Read-Only Memory. As its name suggests, the data written on an EPROM can be erased and reprogrammed. A strong light source of ultraviolet radiation, such as a Mercury-vapour lamp is used and the light emitted by it is concentrated on the EPROM chip to erase the data stored in it. Later on, after the data has been erased, it can be reprogrammed to store specific data.

While EEPROM stands for Electrically Erasable Programmable Read-Only Memory. Its working is similar to the working of EPROM, the basic differences exist only in its programmability and erasability methods as well as efficiency to perform. EEPROM uses electric signals to erase and reprogram data on a byte basis.

Difference between EPROM and EEPROM

EPROM EEPROM
It uses ultraviolet light to erase and program data. It uses electrical signals to erase and program data.
It has a transparent quartz crystal at the top of the chip. It is encapsulated inside a plastic case.
It can be taken out of the computer to reprogram data on it. The data is reprogrammed by keeping the chip inside the computer circuit itself.
It is a modern version of ROM and PROM. It is a modern version of EPROM.
The relative size of every cell in EPROM is 1. The relative size of each cell in EEPROM is 3.
It uses a transistor with a voltage supply of 12.5 Volts. It uses a transistor with a voltage supply of 5 Volts.
The data is erased when electrons are far away from the cell. The data is erased when electrons are trapped in the cell.
EPROM takes about 15-20 minutes to erase data from the chip. EEPROM took 5-7 milliseconds to erase data from the chip.

EPROM and EEPROM were developed to overcome the problems faced while using ROM and PROM. Using EPROM and EEPROM to erase and reprogram data ensures the reusability of the chips at a much faster pace and at low cost, which gives an edge over the limited advantages of ROM and PROM. While EPROM came out as a modified version of ROM and PROM, EEPROM is even a more advanced version of EPROM.

The post Difference between EPROM and EEPROM appeared first on The Crazy Programmer.



from The Crazy Programmer https://ift.tt/3eTPmZy

Labels

Labels:

Comments

Post a Comment

Popular posts from this blog

Difference between Web Designer and Web Developer Neeraj Mishra The Crazy Programmer

Have you ever wondered about the distinctions between web developers’ and web designers’ duties and obligations? You’re not alone! Many people have trouble distinguishing between these two. Although they collaborate to publish new websites on the internet, web developers and web designers play very different roles. To put these job possibilities into perspective, consider the construction of a house. To create a vision for the house, including the visual components, the space planning and layout, the materials, and the overall appearance and sense of the space, you need an architect. That said, to translate an idea into a building, you need construction professionals to take those architectural drawings and put them into practice. Image Source In a similar vein, web development and design work together to create websites. Let’s examine the major responsibilities and distinctions between web developers and web designers. Let’s get going, shall we? What Does a Web Designer Do?...
Post a Comment
Read more

A guide to data integration tools

CData Software is a leader in data access and connectivity solutions. It specializes in the development of data drivers and data access technologies for real-time access to online or on-premise applications, databases and web APIs. The company is focused on bringing data connectivity capabilities natively into tools organizations already use. It also features ETL/ELT solutions, enterprise connectors, and data visualization. Matillion ’s data transformation software empowers customers to extract data from a wide number of sources, load it into their chosen cloud data warehouse (CDW) and transform that data from its siloed source state, into analytics-ready insights – prepared for advanced analytics, machine learning, and artificial intelligence use cases. Only Matillion is purpose-built for Snowflake, Amazon Redshift, Google BigQuery, and Microsoft Azure, enabling businesses to achieve new levels of simplicity, speed, scale, and savings. Trusted by companies of all sizes to meet...
Post a Comment
Read more

Olive and NTT DATA Join Forces to Accelerate the Global Development and Deployment of AI Solutions

U.S.A., March 14, 2021 — Olive , the automation company creating the Internet of Healthcare, today announced an alliance with NTT DATA , a global digital business and IT services leader. The collaboration will fast track the creation of new healthcare solutions to transform the health experience for humans — both in the traditional healthcare setting and at home. As a member of Olive’s Deploy, Develop and Distribute Partnership Programs , NTT DATA is leveraging Olive’s open platform to innovate, build and distribute solutions to Olive’s customers, which include some of the country’s largest health providers. Olive and NTT DATA will co-develop new Loops — applications that work on Olive’s platform to provide humans real-time intelligence — and new machine learning and robotic process automation (RPA) models. NTT DATA and Olive will devote an early focus to enabling efficiencies in supply chain and IT, with other disciplines to follow. “This is an exciting period of growth at Olive, so...
Post a Comment
Read more