Memory arrays are built as an array of … cells

Each cell stores 1 … of data.

Memory arrays are specified by

All memories have …. Ports

size =

Each port gives read and/or write access to …… memory address

….-ported memories can access several addresses simultaneously

Each memory location has unique address

Memory address usually starts at

An address is represented by …. Integer

A byte addressable memory: each word has its own address

most current machines are …. addressable even they have 32 bit or larger words

Volatile, it loses its data when the power is turned off

Can be used only as temporary storage

is used in embedded systems or any systems where the programming doesn’t need to change

are also used in calculators and peripheral devices such as laser printers

Must be provided with constant power supply. If the power is interrupted, then the data are lost

Nonvolatile, it retains its data indefinitely, even without a power source

is essentially EEPROM with data can be written or erased in blocks, removing one byte at a time limitation

no special tools are required for erasure and you can erase only portions of the chip, one byte at a time