Catalyst Semiconductor Inc. was a prominent fabless semiconductor company, specializing in the design and development of non-volatile memory and analog integrated circuits. Founded in 1985 and headquartered in Santa Clara, California, the company established a strong reputation for its innovative EEPROM, NVSRAM, and programmable mixed-signal products. These components were widely used across computing, telecommunications, industrial, and automotive applications. Known for its high-performance and reliable solutions, Catalyst Semiconductor was acquired by ON Semiconductor (now onsemi) in 2008, integrating its technology and product lines to enhance ON’s portfolio in memory and analog semiconductors.