Analog Electronics - GATE practice papers - Electronics & Communication for Q. 515
Q. Choose the incorrect statement(s) from the following:
A. MROM does not allow the storage of user specified data to the manufacturer of the memory
B. PROM can be reprogrammed again and again at any number of times
C. EPROM allows to erase the stored content by direct exposure of chip to UV radiations every time before reprogramming
D. E2 PROM allows erasing in an electrical manner despite the exposure of chip to UV rays. (Marks : 02)- Published on 19 Oct 15a. A & B
b. C & D
c. Only C
d. B & D
ANSWER: A & B
From the given statements, C & D are correct while A & B are incorrect ones. This is so because
In MROM, the user specified data is absolutely stored to the manufacturer of the memory, while PROM allows the data pattern to be programmed on electrical basis with an assistance of a special device called as PROM programmer. Once the data is programmed in PROM, it cannot be changed.
