Department of Computer Scien

ce and Information Engineering

National Cheng Kung University

3

HANEL

SEMI-

CONDUCTOR MEMORYMemory Organization

‰Memory chips are organized into a number of locations within the IC

¾Each location can hold 1 bit, 4 bits, 8 bits, or even 16 bits, depending on how it is designed internally

ƒThe number of locations within a memory IC depends on the address pinsƒThe number of bits that each location can hold is always equal to the number of data pins

‰To summarize

¾A memory chip contain 2

xlocation, where

x

is the number of address pins¾Each location contains

ybits, where

yis

the number of data pins on the chip¾The entire chip will contain 2

x×

ybits