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== Address decoder selects the appropriate memory module ==
An address decoder is also used to select the appropriate one of multiple memory modules or memory chips when a particular address is provided by the processor system's address bus.
For this purpose, the memory modules or memory chips have selection inputs, usually referred to as chip select pin (CS) or chip enable pin (CE) pin. These inputs often have a negative logic function ({{overline|CS}} or {{overline|CE}}), i. H. with an adjacent logical zero (voltage level low) is selected.
==References==
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