In California, analog mixed-signal integrated circuits manufacturer !%Microsemi Corp.%! of Irvine has entered into a definitive agreement to acquire Mountain View-based Actel Corp. for $20.88 per share through a cash tender offer. The total transaction value is approximately $430 million. The acquired company supplies low-power, mixed-signal and radiation-tolerant field-programmable gate arrays that serve the military, aerospace, industrial, communication and consumer markets.