Choose RISC-V Core IP
Efficient, High-Performance, Customizable Core IP.
Designed by the inventors of RISC-V.

SiFive RISC-V Core IP range from ultra-low-power embedded microcontrollers to multi-core, coherent applications processors.

SiFive Core IP are the most widely deployed RISC-V cores in the world and are the lowest risk, easiest path to RISC-V. The SiFive Core IP portfolio is highly configurable, verified and delivered pre-configured in Verilog, making it ideal for your next SoC design.

Vastly Configurable RISC-V Core IP

  • Multiple Core Series at different performance design points
  • Customize a Core Series
    • Number of cores
    • Memory-subsystems
    • And more!
  • Pre-configured Standard Cores within each Core Series ready for evaluation today

Find the right SiFive Core IP Series for your project.

E Series: 32-bit and 64-bit Embedded Core IP

E5 Series – 64-bit Embedded Core IP

E5 Series embedded cores offer 64-bit performance at 32-bit price and area

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E3 Series – 32-bit High Perf Core IP

High performance 32-bit RISC-V embedded cores, the E3 Series is the most widely deployed RISC-V core in the world

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E2 Series – 32-bit Lower Power Core IP

SiFive’s smallest, lowest power, 32-bit core series. The E2 Series is optimized for deeply embedded, microcontroller applications.

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Maximum Performance
Lowest Power & Area

E5 Series

64 bit
  • Networking
  • Storage
  • Industrial

E3 Series

32 bit
  • High Performance Embedded
  • Modems
  • Smart IoT

E2 Series

32 bit
  • Microcontroller
  • IoT
  • Wearables

U Series: 64-bit Linux-Capable Core IP

U5 Series – 64-bit Applications Core IP

The world's first RISC-V Linux capable core with high performance and optimized for maximum efficiency

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U5 Series

64 bit
  • Low Cost Linux
  • Industrial
  • Networking