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Address decoder — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Address_decoder
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-07T13:43:01.915Z
SHA-256 of the archived text: 3a660d84cbb08a2bf8a3e98eedf35bb1095352157e0c01e65c574698a324eb51
Stable URL of this page: https://metraipolis.com/documento/dc_00a30e0f90f6

How to cite

Address decoder — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Address_decoder (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_00a30e0f90f6 (Metraipolis archive dc_00a30e0f90f6, sha256 3a660d84cbb08a2bf8a3e98eedf35bb1095352157e0c01e65c574698a324eb51)

BibTeX

@misc{dc00a30e0f90f6,
  title = {Address decoder — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Address_decoder},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_00a30e0f90f6; sha256 3a660d84cbb08a2bf8a3e98eedf35bb1095352157e0c01e65c574698a324eb51},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Address_decoder. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

In digital electronics, an address decoder is a binary decoder that has two or more inputs for address bits and one or more outputs for device selection signals. When the address for a particular device appears on the address inputs, the decoder asserts the selection output for that device. A dedicated, single-output address decoder may be incorporated into each device on an address bus, or a single address decoder may serve multiple devices. A single address decoder with n address input bits can serve up to 2n devices. Several members of the 7400 series of integrated circuits can be used as address decoders. For example, when used as an address decoder, the 74154 provides four address inputs and sixteen (i.e., 24) device selector outputs. An address decoder is a particular use of a binary decoder circuit known as a "demultiplexer" or "demux" (the 74154 is commonly called a "4-to-16 demultiplexer"), which has many other uses besides address decoding. Address decoders are fundamental building blocks for systems that use buses. They are represented in all integrated circuit families and processes and in all standard FPGA and ASIC libraries. They are discussed in introductory textbooks in digital logic design.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (deposito sistematico; retro-catalogo: tutte le voci di Wikipedia in inglese, in ordine alfabetico).
Fonte: Wikipedia in inglese, voce «Address decoder» — https://en.wikipedia.org/wiki/Address_decoder
Wikidata Q367037: «type of binary decoder» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q367037
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Address_decoder?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1334494604, consultata il 2026-11-07T13:38:09.834Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: d4b85694c9ca72fa47ad5fcddbb200f9e8d1d8be2850c4d3027cf93343bc0c3b