Question

Why do a DRAM employ the address multiplexing technique?

(a) To reduce the number of memory locations

(b) To increase the number of memory locations

(c) To reduce the number of address lines

(d) To increase the number of address lines

The question was asked during an online interview.

The doubt is from Random Access Memory in section Memory Devices of Digital Circuits

Answer 1

Correct answer is (c) To reduce the number of address lines

To explain I would say: A Dynamic RAM usually employs a technique called address multiplexing to reduce the number of address lines and thus the number of input/output pins on the IC package.