RISC-V core IP, available now.

SiFive Standard Cores are the most silicon-deployed RISC‑V solutions in the world. From low-power embedded microcontrollers to multi-core applications processors, our core IP is the lowest risk, easiest path to RISC-V.

SiFive Standard Cores are customizable and can be tuned to meet precise needs with the SiFive Core Designer.

Free evaluation Dev Kits with Verilog RTL and FPGA bitstreams are available to download now.

RISC-V Cores

SiFive Standard Core IP

7 Series
Highest performance:

8-stage, dual-issue superscalar pipeline

3/5 Series
Efficient performance:

5–6-stage, single-issue pipeline

2 Series
Power & area optimized:

2–3-stage, single-issue pipeline

E Cores
32-bit embedded cores

MCU, edge computing, AI, IoT

E7 Series
Highest performance

Quad-core 32-bit embedded processor

High performance 32-bit embedded processor

E3 Series
Efficient performance

E31 features + single-precision floating point

Balanced performance and efficiency

E2 Series
Power & area optimized

E21 features + single-precision floating point

E20 features + User Mode, Atomics, Multiply, TIM

Our smallest, most efficient core

S Cores
64-bit embedded cores

Storage, AR/VR, machine learning

S7 Series
Highest performance

Quad-core 64-bit embedded processor

High-performance 64-bit embedded core

S5 Series
Efficient performance

S51 features + double-precision floating point

Low-power 64-bit MCU core

S2 Series
Power & area optimized

Area optimized 64-bit processor

U Cores
64-bit application processors

Linux, datacenter, network baseband

U7 Series
Highest performance

Multicore: four U74 cores and one S76 core

High performance Linux-capable processor

U5 Series
Efficient performance

Multicore application processor with four U54 cores and one S76 core

Linux-capable application processor

Core Designer

Customize your RISC-V core.

With the SiFive Core Designer, RISC-V cores can be tuned to meet precise needs. Free evaluation Dev Kits with Verilog RTL and FPGA bitstreams are available to download now.