U5 Series

The U5 Series features a RISC V Linux-capable application processor that offers high performance with maximum efficiency. The U5 core has a 5-6 stage pipeline and supports virtual memory, enabling 64-bit RISC-V applications.

U5 Series Features

Up to 9 cores and optional L2 Cache Controller

Heterogeneous multi-core with a configurable number of U5 and S5 Cores pre-integrated in a single deliverable

U5 and S5 Core performance

L1 and L2 memory systems and optional ECC protection

Number, type, and width of bus interfaces

Broad Market Applications

Low-cost Linux





General-purpose embedded

U7 Series

The U7 Series features SiFive’s highest-performance RISC-V Linux-capable application processor. The U7 core has a superscalar 8-stage pipeline with support for virtual memory, enabling the most demanding 64-bit RISC-V applications such as Edge Compute, Big-Data Analytics and 5G Base Stations.

U7 Series Features

Up to 8 (+1) coherent high-performance RISC-V application processors

Supports an in-cluster coherent combination of application processors with real-time processors (U7 and S7)

Application processors with deterministic response

High-performance L1 memory microarchitecture

Virtual addressing supported with Sv48, Sv39

Physical Memory Protection

New microarchitecture features for enhanced security and real-time determinism

Floating Point Unit supporting Double, Single and Half Precision

Tightly Integrated Core Local Port

Bit manipulation extension


Broad Market Applications

Enterprise Storage, Smart NICs

Edge Analytics, Big-Data Analytics

Autonomous Machines

Edge Compute and Switching/Routing

5G Base Stations