National Semiconductor was an American semiconductor manufacturer based in Santa Clara, California. This company developed cutting-edge power management integrated circuits, display drivers, audio and operational amplifiers, communication interface products, and data conversion solutions for an array of distinct electronics markets including wireless handsets, displays as well as medical apparatus applications, automotive designs, industrial operations, and test measurement systems.

On September 23, 2011, the company was officially integrated into Texas Instruments as its “Silicon Valley” division.