Department of Computer Scien

ce and Information Engineering

National Cheng Kung University

HANEL

SEMI-

CONDUCTOR MEMORYRAM (Random Access Memory)

‰RAM memory is called

volatile

memory

since cutting off the power to the IC will result in the loss of data¾Sometimes RAM is also referred to as RAWM (read and write memory), in contrast to ROM, which cannot be written to ‰There are three types of RAM¾Static RAM (SRAM)¾NV-RAM (nonvolatile RAM)¾Dynamic RAM (DRAM)