Monolithic Memories, Inc. (MMI) produced bipolar PROMs, programmable logic devices, and logic circuits (including 7400 series TTL).
MMI was founded in 1969 by former Fairchild Semiconductor engineer Ze’ev Drori, later the President and CEO of Tesla Motors. In 1987, it merged with Advanced Micro Devices to become the world’s largest integrated circuit manufacturer. AMD later spun off their programmable logic division as Vantis, which was then acquired by Lattice Semiconductor.
