static random-access memory

Computing Dictionary

static random-access memory definition

(SRAM) Random-access memory in which each bit of storage is a bistable flip-flop, commonly consisting of cross-coupled inverters. It is called "static" because it will retain a value as long as power is supplied, unlike dynamic random-access memory (DRAM) which must be regularly refreshed. It is however, still volatile, i.e. it will lose its contents when the power is switched off, in contrast to ROM.
SRAM is usually faster than DRAM but since each bit requires several transistors (about six) you can get less bits of SRAM in the same area. It usually costs more per bit than DRAM and so is used for the most speed-critical parts of a computer (e.g. cache memory) or other circuit.

The Free On-line Dictionary of Computing, © Denis Howe 2010
Cite This Source
Previous Definition: static ram
Next Definition: static reflex
More from
Synonyms and Antonyms for Static random-access memory
More from
Search for articles containing Static random-access memory Word FAQs presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature