Creating a safer, greener, more secure future.



SiFive brings the power of open source and software automation to the semiconductor industry, making it possible to develop new hardware faster and more affordably than ever before. With our platform for rapidly designing, testing and building RISC‑V-based core IP and chips, we’re accelerating the pace of innovation for businesses large and small.

You don’t need to be an expert in silicon design to produce custom chips. SiFive’s platform makes it possible to design at the system level and create chips that meet your exact specifications without deep pockets or a high-volume guarantee.

The inventors of RISC‑V joined forces with silicon experts bringing a new approach to semiconductors together with decades of industry experience, hundreds of tapeouts and millions of chips shipped.


Device Family SAFERTOS® Demo Available
FE310-G00x E Cores Yes

E Cores

SiFive RISC-V core IP are the most silicon-deployed RISC‑V solutions in the world. From low-power embedded microcontrollers (as small as 13.5k gates) to multi-core application processors, our core IP is the lowest risk, easiest path to RISC-V.

SiFive Cores Series are customizable and can be tuned to meet your precise needs with the SiFive Core Designer. SiFive Standard Cores are pre-configured design points in a Core Series and are perfect starting points.

E Cores are 32-bit embedded cores addressing the MCU, edge computing, AI and IoT markets. 2 Series E Cores are power and area optimized: 2–3-stage, single-issue pipeline, as small as 13.5k gates 3 and 5 Series E Cores are efficient and performance oriented: 5–6-stage, single-issue pipeline 7 Series E Cores are the highest performance: 8-stage, dual-issue superscalar pipeline.

Free Demos & Manuals

Download fully functional, time-limited SAFERTOS® demos, plus manuals, datasheets, and more.