Question

what is the maximum size of a memory that can be connected to a 20bits address bus processor if the memory cell size is 16 bits. Find the result in bytes

Answer 1

Q-> what is the maximum size of a memory that can be connected to a 20bits address bus processor if the memory cell size is 16 bits. Find the result in bytes?

Given:

no of bits in address bus = 20

size of each memory cell = 16 bits = 2 bytes

.

=> no of locations that can be accessed by 20 bits = 2²⁰ = 1048576

Size of each cell is 2 bytes

=> total size in bytes = memory cell size * no of locations = 2 * 2²⁰ = 2²¹ bytes

.

=> a maximum of 2 Mega bytes can be connected to this CPU.