- Microsemi SoC is a leading provider of programmable semiconductor solutions differentiated by power, security, reliability, and performance. Products include the first device to integrate an ARM® Cortex™-M3 Microprocessor subsystem and programmable Analog blocks with a flash based, "instant on" FPGA fabric. Using the available Libero SoC and SoftConsole design tools, Microsemi SoC offers a design flow that covers both your Programmable Logic and Software development needs. Microsemi is a publicly held company (NASDAQ: MSCC) headquartered in Aliso Viejo, Calif., and has approximately 3,000 employees globally.