10 Facts About SiFive

SiFive is a fabless semiconductor company and provider of commercial RISC-V processor IP and silicon chips based on the RISC-V instruction set architecture .

SiFive is the first company to produce a chip that implements the RISC-V ISA.

SiFive was founded in 2015 by Krste Asanovic, Yunsup Lee, and Andrew Waterman, three researchers from the University of California Berkeley.

In June 2018, SiFive acquired Open-Silicon for an undisclosed amount and retained their design capabilities for specialized chips, called application-specific integrated circuits, or ASICs.

In February 2018, SiFive released the HiFive Unleashed, a development board containing a 64-bit SoC with four U54 cores.

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In October 2020, SiFive released the HiFive Unmatched, a Mini-ITX development board with four U74-MC cores, one S7 core, 8GB DDR4 RAM, four USB 3.

In January 2020, SiFive hired Chris Lattner, an American software engineer best known as the main author of LLVM and related projects such as the Clang compiler and the Swift programming language.

SiFive joined SiFive as Senior Vice President of Platform Engineering after two years at Google.

That same month, SiFive announced the creation of the OpenFive business unit to focus on the creation of processor-agnostic custom SoC design.

In June 2021, SiFive launched a new processor family with two core designs: P270, a Linux-capable CPU; and P550, the highest-performing RISC-V CPU.