What is the differences between EPROM and PROM and explain both
The eduladder is a community of students, teachers and programmers just interested to make you to pass any exams. Because we believe that you can do more than that of just passing exams. What else we do?
Our team
Wondering how this works?
Want to pass exams? or want to help students to pass?

Ask a Question

You are here:-->View note-->View question

What is the differences between EPROM and PROM and explain both?

Explain

By:scribed

Taged users:
|Mute-c-pact-Andrew|PerumalS|sahajananda|KriJun|vtunotesbysree|vijayv

Likes:
Be first to like this question

Dislikes:
Be first to dislike this question
Talk about thisDelete|Like|Dislike|


Answers

PROM stands for Programmable Read Only Memory

EPROM stands for Erasable Programmable Read Only Memory
The differences between both are as follows.
  PROM is the older technology while both PROM and EPROM are nonvolatile memory devices.
 • PROMs can be programmed only once while EPROMs are reusable and can be programmed multiple times. 
• The process in the programming of PROMS is irreversible; hence the memory is permanent. In EPROMs memory can be erased by exposure to UV light. 
• EPROMs have a fused quartz window in the packaging to allow this. PROMs are enclosed in complete plastic packaging; therefore UV has no effect on PROMs
 • In PROMs data is written/ programmed onto the chip by blowing the fuses at each bit using much higher voltages than the average voltages used in digital circuits. EPROMS also use high voltage, but not enough to alter the semiconductor layer permanently.


metaphor

Likes:
Be first to like this answer

Dislikes:
Be first to dislike this answer
Talk about thisOnce you have earned teacher badge you can edit this questionDelete|Like|Dislike|
------------------------------------

You dont have permission to add an answer herePlease see this

Join us to pass any exams easily