...When demand is less than full customization and exceeds 1000 units, the gate array method is used, and for even smaller demands there are FPGAs and PLAs. Gate arraysLSIs are economical to mass-produce the same type of product, as with DRAMs, but as logic LSIs become larger and the circuit functions of each chip become more complex, there is often a demand for small quantities of a wide variety of products. In such cases, it is cost-prohibitive to design and manufacture each type as a separate LSI from the beginning. ... *Some of the terminology explanations that mention "gate array" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…需要がフルカスタム以下で1000個程度以上ではゲートアレー方式が,さらに需要数が少ない場合に対してはFPGA,PLAがある。 ゲートアレーgate arrayLSIはDRAMのように同一品種を大量生産するのが経済的であるが,論理系LSIでは大規模化が進み1チップの回路機能が複雑化してくると,少量多品種が要求されることが多くなる。このような場合に,各品種をすべて最初から別のLSIとして設計・製造するのはコスト的に不利である。… ※「gate array」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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