Question

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

Answer 1

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.