Vastly customizable core IP.
Get best-in-class core IP developed by the inventors of RISC‑V and customize it to your exact specifications.
Here’s how it works.
01. Design
Customize a SiFive Standard Core to meet the precise needs of your product.
02. Evaluate
Simulate with fully-functional, synthesizable Verilog RTL. Run your application code on an FPGA.
03. License
Licensing is straightforward and your custom RISC‑V core IP is available within weeks.
RISC‑V Cores
Start designing.
I want core that runs
Core Series
Choose your foundation
Core Series provide powerful capabilities for your product ideas. Choose one of our silicon-proven RISC-V Standard Cores—or customize a core to get the precise results that you need.
What People
are Saying

“SiFive’s RISC‑V Core IP was 1/3 the power and 1/3 the area of competing solutions, and gave FADU the flexibility we needed in optimizing our architecture to achieve these groundbreaking products.”
Jihyo Lee — CEO, FADU

“SiFive’s founders invented the RISC‑V instruction set architecture, which puts them in the driver’s seat for customers who want the benefits that open source hardware development offers.”
Drew Wingard — Sonics CTO

“SiFive’s cloud-based approach provides flexibility and ease for design teams, and we look forward to exploring its benefits.”
Raja Koduri — GM Edge Computing Solutions, Chief Architect, Intel

“RISC‑V looks as if it’s on its way to becoming a disruptive force for devices operating at the edge.”
Christine Hall — DataCenterKnowledge.com

“Like ARM processors, [SiFive’s] U540 sips power, and they already seem capable of doing the type of heavy lifting required of servers.”
Christine Hall — DataCenterKnowledge.com

“RISC‑V will allow the entire industry to realize the benefits of next-generation architectures while also enabling us to create more purpose-built devices, platforms and storage systems for Big Data and Fast Data applications.”
Mike Cordano — President & COO, Western Digital