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1.4 Integrated Circuits

1.4 Integrated Circuits

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1.4 Integrated Circuits

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  1. 1.4 Integrated Circuits Next • Integrated Circuit: A collection of one or more gates fabricated on a single silicon chip is called an integrated circuit (IC). 制作、构成 • SSI: Small-scale integration ICs contain the equivalent of 1 to 20 gates • MSI: Medium-scale integration ICs contain the equivalent of 20 to 200 gates • LSI: Large-scale integration ICs contain the equivalent of 200 to 200,000 gates or more. small memories, microprocessors, program- mable logic devices etc. Return

  2. 1.4 Integrated Circuits Back • VLSI: VeryLarge-scale integration. The dividing line between LSI and very large-scale integration (VLSI) is fuzzy and tends to be stated in terms of transistor count rather than gate count. Any IC with over 1,000,000 transistors is definitely VLSI. In 1999, VLSI ICs with as many as 50 million transistors were being designed. Return