The 320xx or NS32000 was a series of microprocessors from National Semiconductor ("NS", "Natsemi"). They were likely the first 32-bit general-purpose microprocessors on the market, but due to a number of factors never managed to become a major player. The 320xx series was also used as the basis of the Swordfish series of microcontrollers.

Community content is available under CC-BY-SA unless otherwise noted.