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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Sense amplifier ： ウィキペディア英語版 Sense amplifier In modern computer memory, a sense amplifier is one of the elements which make up the circuitry on a semiconductor memory chip (integrated circuit); the term itself dates back to the era of magnetic core memory.〔(''PDP-8 Maintenance Manual'' ), Digital Equipment Corporation, F-87, 2/66, 1966; pages 4-1 to 4-13.〕 A sense amplifier is part of the read circuitry that is used when data is read from the memory; its role is to sense the low power signals from a ''bitline'' that represents a data bit (1 or 0) stored in a memory cell, and amplify the small voltage swing to recognizable logic levels so the data can be interpreted properly by logic outside the memory.〔A Low-Power SRAM Using Bit-Line Charge-Recycling for Read and Write Operations(), IEEE Journal of Solid-State Circuits, 2010 IEEE〕 Modern sense-amplifier circuits consist of two to six (usually four) transistors, while early sense amplifiers for core memory sometimes contained as many as 13 transistors.〔(''PDP-8 Maintenance Manual'' ), Digital Equipment Corporation, F-87, 2/66, 1966; page 10-9 drawing RS-B-G007.〕 There is one sense amplifier for each column of memory cells, so there are usually hundreds or thousands of identical sense amplifiers on a modern memory chip. As such, sense amplifiers are one of the only analog circuits in a computer's memory subsystem. == Basic structure == Sense amplifier is required during the data read and refresh operation from the memory concerned. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sense amplifier」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.