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What does the 1-2-3 numbering system used in National Semiconductor IC denotes

(a) Validity in years

(b) Temperature range

(c) Package type

(d) Ordering information

I had been asked this question by my school principal while I was bunking the class.

The doubt is from Integrated Circuits, Types & Manufacturer’s Design topic in portion IC Fabrication of Linear Integrated Circuits

1 Answer

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by (39.8k points)
Right answer is (c) Package type

Navigate through clarity with: In National linear ICs, a 1-2-3 numbering system is used to represent the temperature range.

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