Microsemi Corp. a leading provider of semiconductor solutions differentiated by power, security, reliability and performance, and Vitesse Semiconductor Corp., jointly announced that Microsemi has entered into a definitive agreement to acquire Vitesse for $5.28 per share through a cash tender offer, representing a premium of 32 percent based on the average closing price of Vitesse's shares of common stock during the 30 trading days ended March 17, 2015.